CN114099821A - Peritoneal dialysis connecting device for nephrology department - Google Patents

Abstract

The invention provides a peritoneal dialysis connecting device for nephrology department, wherein a first joint comprises a seat sleeve, a cylindrical concave cavity is arranged in the seat sleeve, a liquid inlet pipe communicated with the concave cavity is arranged on the side wall of the concave cavity, an arc-shaped groove is also arranged on the inner wall of the concave cavity in the circumferential direction, and two ends of the arc-shaped groove are respectively provided with a sliding hole penetrating through the seat sleeve; the other end of the conveying channel is connected with one end of a high-elasticity hose, the high-elasticity hose is positioned in the core column, the end face of the other end of the high-elasticity hose is flush with the end face of the other end of the core column, and a first flashboard and a second flashboard which are in smooth contact with each other are arranged above the high-elasticity hose side by side; the second joint comprises a bottle cap-shaped threaded cover, the threaded cover can be screwed on the other end of the core column in a threaded fit manner, a plurality of air holes are formed in the position, close to the inner side wall of the threaded cover, and the piston disc is axially connected with the inlet end of the liquid outlet pipe in a sliding manner and is in dynamic sealing fit with the inlet end of the liquid outlet pipe. This device can high-speed joint and exhaust air, avoids the air along with the pipeline inflow patient is internal.

Description

Peritoneal dialysis connecting device for nephrology department

Technical Field

The invention relates to the technical field of peritoneal dialysis equipment, in particular to a peritoneal dialysis connecting device for nephrology department.

Background

Peritoneal dialysis is one kind of kidney replacement therapy, and is characterized in that the peritoneal membrane is used as a dialysis membrane, and through the dialysate filled into the peritoneal cavity and plasma components in capillary vessels on the other side of the peritoneal membrane, solute and moisture exchange is carried out, so that metabolites and excessive moisture remained in the body are eliminated, substances required by the body are supplemented through the dialysate, and the aim of kidney replacement or supporting therapy is fulfilled through continuously updating the peritoneal dialysate. When peritoneal dialysis is performed on a patient, peritoneal dialysis liquid needs to be conveyed into the abdominal cavity of the patient, and when the peritoneal dialysis liquid and the patient are connected by the conventional equipment, the connection is inconvenient, and a large amount of air inevitably enters the equipment, so that the treatment effect is influenced.

Disclosure of Invention

The invention aims to solve the problems that the prior art is insufficient, the peritoneal dialysis connecting device for the nephrology department is provided, and the problems that a dialysis pipeline is inconvenient to connect and air is easy to mix in the peritoneal dialysis in the prior art are solved.

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

a peritoneal dialysis connecting device for nephrology department comprises a first connector and a second connector, wherein the first connector is used for being connected to one side of peritoneal dialysis liquid, the second connector is used for being connected to the abdomen of a patient, the first connector comprises a seat cover, a cylindrical cavity is arranged in the seat cover, a liquid inlet pipe communicated with the cavity is arranged on the side wall of the cavity, an arc-shaped groove is further arranged in the circumferential direction of the inner wall of the cavity, and two ends of the arc-shaped groove are respectively provided with a sliding hole penetrating through the seat cover; the liquid inlet pipe is characterized by further comprising a core column, one end of the core column is rotatably and non-movably matched and mounted in the concave cavity, a blind hole is formed in one side of the cylindrical surface of the core column and is communicated with one end of a conveying channel arranged in the core column, a guide block is further convexly arranged on the cylindrical surface of the core column, the guide block is mounted in the arc-shaped groove in a sliding fit manner, a lock pin capable of extending out of the surface of the guide block is elastically mounted in the guide block, and the free end of the lock pin is in pressing contact with the bottom of the arc-shaped groove, so that when the core column rotates in the seat sleeve, the free end of the lock pin can extend out of the sliding hole, and the blind hole is communicated with the liquid inlet pipe; the other end of the conveying channel is connected with one end of a high-elasticity hose, the high-elasticity hose is located in the core column, the end face of the other end of the high-elasticity hose is flush with the end face of the other end of the core column, a first flashboard and a second flashboard which are in smooth contact with each other are arranged above the high-elasticity hose side by side, the two flashboards are vertically installed in the core column in a sliding fit mode, one end of each flashboard is located outside the core column, the first flashboard is arranged above the end, connected with the conveying channel, of the high-elasticity hose, and the second flashboard is arranged above the other pipe sections of the high-elasticity hose;

the second connects, and it includes the screw cap of bottle lid form, and the screw cap can be screwed with screw-thread fit on the other end of stem, and the screw cap leans on its inside wall department to be equipped with a plurality of bleeder vent, and the central authorities of screw cap have a circular shape boss the central authorities of boss are embedded coaxially and are fixed with the drain pipe, and the entrance point of drain pipe flushes with the terminal surface of boss, and the piston dish is still installed with elastic expansion ground to the entrance point department of drain pipe, and the piston dish just moves the sealed cooperation with the entrance point axial sliding connection of drain pipe, and the internal diameter of the pipeline section outside the drain pipe entrance point all is greater than the internal diameter of its entrance point to when making the piston dish remove one section distance towards drain pipe exit end direction the drain pipe with the high stretch hose intercommunication.

Wherein, the path of the arc groove is semicircular; the free end of the lock pin is of a hemispherical structure. And an operating ring is arranged on the outer side of the core column. The conveying channel comprises a section of curve-shaped channel which is arranged in a snake shape, and the high-elasticity hose and the core column are coaxially arranged. The second flashboard is the T type, and outside the stem was stretched out to the one end of its vertical section, the stem horizontal segment leaned on its both ends department respectively to be equipped with a suspension spring to the realization is installed the suspension type of second flashboard, and under the natural state, the second flashboard did not contact with high-elastic hose.

In addition, a piston dish deviates from a slide bar of one end rigid coupling of high-elastic hose, and the slide bar is installed internally at the installation of ellipsoid with sliding fit, and this installation body erects on the axis of drain pipe through a plurality of connecting rods, and in the slide bar passed the major axis of the installation body after sliding fit ground stretched into an installation pipe, this installation pipe erected on the axis of drain pipe, and a pressure-bearing spring was installed to the axial in the installation pipe, pressure-bearing spring's tip with the tip of slide bar meets, and under non-operating condition, the piston dish quilt pressure-bearing spring top to the inlet end department of drain pipe. The bottom of the installation pipe is coaxially provided with a limit column.

In a more preferable implementation structure, a polish rod is inserted into the wall of the inlet end of the liquid outlet pipe in a sliding fit manner, the bottom end of the polish rod is obliquely and downwards arranged towards one side of the piston disc, the top end of the polish rod is coaxially and integrally connected with a threaded rod, the threaded rod is in threaded connection with the threaded cover, and when the threaded rod is screwed to the bottom, the bottom end of the polish rod just abuts against the end face of the piston disc. The top end of the threaded rod is exposed out of the threaded cover and fixedly connected with a steel ball, the threaded rod is also provided with a scale mark, and the scale mark is coplanar with the end face of the threaded cover when the bottom end of the polished rod just props against the end face of the piston disc. The air holes are arranged on the threaded cover in a circular array.

Compared with the prior art, the invention has the following beneficial effects: the invention has a liquid inlet pipe, a blind hole, a high-elastic hose controlled by two flashboards and three switch structures, can well realize the transport control of the peritoneal fluid, and most importantly, the threaded connection of a core column and a threaded cover is very convenient, the flashboards can extrude air, and the air hole structure design of the threaded cover can ensure that the two are connected to discharge the air in the space between the two, thereby realizing the transport of the peritoneal fluid after the air is discharged at the joint.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 shows a pressing and fixing structure of the shutter.

The device comprises aseat sleeve 1, acore column 2, aliquid inlet pipe 3, ablind hole 4, a conveyingchannel 5, a lock pin 6, a high-elasticity hose 7, afirst flashboard 8, asecond flashboard 9, a threadedcover 10, anair vent 11, aliquid outlet pipe 12, apiston disc 13, asliding rod 14, aninstallation body 15, aninstallation pipe 16, a polished rod 17, a threadedrod 18 and anoperation ring 19.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:

as shown in fig. 1, the present invention provides a peritoneal dialysis connection device for nephrology department, which mainly comprises a first connector for connecting to one side of a container for containing peritoneal dialysis solution and a second connector for connecting to the abdomen of a patient, wherein the first connector and the second connector are mainly used for connecting the peritoneal dialysis solution and the abdomen of the patient. Specifically, for the first joint, it includesseat cover 1, has a cylindrical cavity in theseat cover 1, is equipped with thefeed liquor pipe 3 that communicates with it on the lateral wall of this cavity, still has an arc slot on the circumferencial direction of the inner wall of cavity, and the both ends of this arc slot have a slide opening that runs throughseat cover 1 respectively. Meanwhile, the present embodiment further includes astem 2, thestem 2 is preferably machined into a relatively smooth cylindrical structure as a whole, and one end of thestem 2 is rotatably and non-axially movably fitted in the cavity, that is, thestem 2 is rotatably fitted in situ in thesleeve 1. During manufacturing, ablind hole 4 can be formed in one side of the cylindrical surface of thecore column 2, theblind hole 4 is communicated with one end of a conveyingchannel 5 arranged in thecore column 2, a guide block is convexly arranged on the cylindrical surface of thecore column 2 and is installed in the arc-shaped groove in a sliding fit mode, for example, the path of the arc-shaped groove is semicircular; a lock pin 6 capable of extending out of the surface of the guide block is elastically installed in the guide block, the free end of the lock pin 6 is in extrusion contact with the bottom of the arc groove, namely the lock pin 6 tends to pop out outwards in thecore column 2, so that when thecore column 2 is rotated in theseat sleeve 1, the free end of the lock pin 6 can extend out of the sliding hole, theblind hole 4 is communicated with theliquid inlet pipe 3 at the moment, and during specific processing, the free end of the lock pin 6 is in a hemispherical structure. As a further special construction, the other end of thefeed channel 5 is connected to one end of a highly elastic hose 7, the highly elastic hose 7 being a tube which is itself highly elastic, easily compressed but quickly restored to its original shape. This high-elastic hose 7 is located withinstem 2 and its other end terminal surface flushes with the other end terminal surface ofstem 2, high-elastic hose 7 top is equipped with smoothfirst flashboard 8 and thesecond flashboard 9 of contact each other side by side, the equal vertical sliding fit ground of two flashboards is installed instem 2 and its one end all is located outsidestem 2, high-elastic hose 7 is equipped withfirst flashboard 8 with the one end top thattransfer passage 5 is connected, what all the other pipeline sections top of high-elastic hose 7 set up issecond flashboard 9, in order to push down high-elastic hose 7's the corresponding position respectively, extrude air or liquid.

Meanwhile, the second joint of the embodiment has the specific structure that: comprises a bottle cap-shaped threadedcap 10, the threadedcap 10 can be screwed on the other end of thestem 2 in a threaded fit manner, so as to realize the detachable connection of the two, a plurality ofair holes 11 are arranged on the inner side wall of thescrew cap 10, a circular boss is arranged at the center of thescrew cap 10, aliquid outlet pipe 12 is coaxially embedded and fixed in the center of the boss, the inlet end of theliquid outlet pipe 12 is flush with the end surface of the boss, apiston disc 13 is elastically and telescopically mounted at the inlet end of theliquid outlet pipe 12, thepiston disc 13 is axially and slidably connected with the inlet end of theliquid outlet pipe 12 and is in dynamic sealing fit with the inlet end of theliquid outlet pipe 12, the inner diameters of pipe sections except the inlet end of theliquid outlet pipe 12 are larger than that of the inlet end of the liquid outlet pipe, so that when thepiston disc 13 moves a certain distance towards the outlet end of theliquid outlet pipe 12, a gap is formed between thepiston disc 13 and the inner wall of the liquid outlet pipe, so that theliquid outlet pipe 12 is communicated with the whole high-elasticity hose 7, and the whole flow passage is opened to convey the peritoneal dialysis solution.

When the device is used, thecore column 2 is rotated until theblind hole 4 is communicated and aligned with theliquid inlet pipe 3, so that the abdominal dropsy enters theconveying channel 5, and the lock pin 6 is popped out of one of the slide holes of the arc-shaped groove at the moment, so that the relative position between thecore column 2 and theseat cover 1 is fixed, and the inside of the conveyingchannel 5 is always kept in an inflow state of the abdominal dropsy. All the shutters are not in contact with the high elastic hose 7, and the high elastic hose 7 is expanded under the pressure of the peritoneal dialysis solution in thetransfer passage 5 to restore the tubular structure, thereby normally transferring the peritoneal dialysis solution.

When the connecting pipeline between the peritoneal dialysis solution and a patient needs to be disconnected, thefirst flashboard 8 is pressed down to seal and intercept the interface between the high-elasticity hose 7 and the conveyingchannel 5, then thesecond flashboard 9 is pressed down to flatten the high-elasticity hose 7, so that air cannot leak into or only very little air leaks into the high-elasticity hose 7 after the threadedcover 10 is removed. Of course, for the fixation of the two shutters after being pressed down, the skilled person can manually press the two shutters during operation, which can be the case for the infusion solution with short disconnection time, and if the infusion solution is disconnected for a long time, the two shutters need to be pressed down and fixed on thestem 2, and the structure can be also designed by the skilled person, and the position of the shutters can be fixed by adopting some existing buckling structures. Or as shown in fig. 2, a T-shaped frame is adopted, and a bolt which is vertically arranged and screwed into the frame is matched, so that the gate plate can be pressed and fixed. With such a design, after thescrew cap 10 is unscrewed, air does not enter the peritoneal dialysis solution flow path of the first connector, and the next connection can be performed by directly sleeving thescrew cap 10 on the first connector, so that the peritoneal dialysis solution can be conveyed according to the operation, and air is hardly mixed in.

As an implementation detail, the outer side of thestem 2 is further provided with anoperating ring 19, so that theoperating ring 19 is gripped to rotate thestem 2. The conveyingchannel 5 can also be made to comprise a section of curved channel in a serpentine arrangement, with the high-elasticity hose 7 arranged coaxially with thestem 2. The serpentine structure is designed, and the length of the conveyingchannel 5 is mainly prolonged in a space as small as possible, so that when the high-elasticity hose 7 is pressed down subsequently to discharge air, the front end of the serpentine structure is provided with enough filling liquid columns. As implementation details, thesecond gate plate 9 is T-shaped, one end of the vertical section of the second gate plate extends out of thecore column 2, two suspension springs are respectively arranged at two ends of the horizontal section of thecore column 2, so that thesecond gate plate 9 can be mounted in a suspension mode, and in a natural state, thesecond gate plate 9 is not in contact with the high-elasticity hose 7, so that the high-elasticity hose 7 is automatically released from pressure after thesecond gate plate 9 is pressed downwards.

In addition, as for the installation driving structure of thepiston disc 13, it is recommended to make thepiston disc 13 fixedly connected with asliding rod 14 at one end of thepiston disc 13 departing from the high elastic hose 7, thesliding rod 14 is installed in anellipsoidal installation body 15 in a sliding fit manner so as to reduce the initial fluid impact resistance, theinstallation body 15 is erected on the central axis of theliquid outlet pipe 12 through a plurality of connecting rods, thesliding rod 14 passes through the long axis of theinstallation body 15 and then extends into aninstallation pipe 16 in a sliding fit manner, theinstallation pipe 16 is erected on the central axis of theliquid outlet pipe 12, a pressure-bearing spring is axially installed in theinstallation pipe 16, the end of the pressure-bearing spring is connected with the end of thesliding rod 14, and in a non-working state, thepiston disc 13 is jacked to the inlet end of theliquid outlet pipe 12 by the pressure-bearing spring, a limit column can be coaxially installed at the bottom of theinstallation pipe 16 so as to contact with the limit column to protect the pressure-bearing spring when the slidingrod 14 retracts into theinstallation pipe 16, mainly avoid the abnormal operation, the overload protection is played when accidental hydraulic pressure rises.

In a more preferable embodiment, a polish rod 17 is inserted into the wall of the inlet end of theoutlet pipe 12 in a sliding fit manner, the bottom end of the polish rod 17 is obliquely arranged downwards towards one side of thepiston disc 13, the top end of the polish rod 17 is coaxially and integrally connected with a threadedrod 18, the threadedrod 18 is in threaded connection with the threadedcap 10, and when the threadedrod 18 is screwed to the bottom, the bottom end of the polish rod 17 is just pressed against the end face of thepiston disc 13. The top end of the threadedrod 18 is exposed out of the threadedcover 10 and fixedly connected with a steel ball, the threadedrod 18 is also provided with a scale mark, and the time mark which is just propped against the end face of thepiston disc 13 at the bottom end of the polish rod 17 is coplanar with the end face of the threadedcover 10. The airingholes 11 are provided in a circular array arrangement on thescrew cap 10.

Above setting of polished rod 17, it should be noted that, before screwing upscrew cap 10,screw rod 18 must be screwed to the end first, make polished rod 17 push up onpiston disc 13 terminal surface, like this, when subsequently screwing upscrew cap 10, the space betweenstem 2 andscrew cap 10 diminishes gradually, the air in between can not drivepiston disc 13 mistake because ofstriking piston disc 13, make the air only pass throughbleeder vent 11 and escape, when the boss ofscrew cap 10 and stem 2 terminal surface hug closely, screwcap 10 screws in place, the air betweenscrew cap 10 andstem 2 at this moment is all discharged, and high-elastic hose 7 anddrain pipe 12 align. Then the threadedrod 18 is screwed out for a certain distance, the pushing blocking force of the polish rod 17 to thepiston disc 13 is released, and along with the delivery of the peritoneal dialysis solution, thepiston disc 13 can move towards one side of the outlet end of theliquid outlet pipe 12 at the moment, so that the internal channel of theliquid outlet pipe 12 is opened, and the peritoneal dialysis solution is smoothly input into theliquid outlet pipe 12 and then enters the body of a patient.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (10)

1. The utility model provides a peritoneal dialysis connecting device for nephrology dept which characterized in that: comprises a first connector for connecting to the liquid side of the abdomen and a second connector for connecting to the abdomen of the patient, wherein

The first joint comprises a seat sleeve, a cylindrical concave cavity is arranged in the seat sleeve, a liquid inlet pipe communicated with the concave cavity is arranged on the side wall of the concave cavity, an arc-shaped groove is further arranged in the circumferential direction of the inner wall of the concave cavity, and two ends of the arc-shaped groove are respectively provided with a sliding hole penetrating through the seat sleeve; the liquid inlet pipe is characterized by further comprising a core column, one end of the core column is rotatably and non-movably matched and mounted in the concave cavity, a blind hole is formed in one side of the cylindrical surface of the core column and is communicated with one end of a conveying channel arranged in the core column, a guide block is further convexly arranged on the cylindrical surface of the core column, the guide block is mounted in the arc-shaped groove in a sliding fit manner, a lock pin capable of extending out of the surface of the guide block is elastically mounted in the guide block, and the free end of the lock pin is in pressing contact with the bottom of the arc-shaped groove, so that when the core column rotates in the seat sleeve, the free end of the lock pin can extend out of the sliding hole, and the blind hole is communicated with the liquid inlet pipe;

the other end of the conveying channel is connected with one end of a high-elasticity hose, the high-elasticity hose is located in the core column, the end face of the other end of the high-elasticity hose is flush with the end face of the other end of the core column, a first flashboard and a second flashboard which are in smooth contact with each other are arranged above the high-elasticity hose side by side, the two flashboards are vertically installed in the core column in a sliding fit mode, one end of each flashboard is located outside the core column, the first flashboard is arranged above the end, connected with the conveying channel, of the high-elasticity hose, and the second flashboard is arranged above the other pipe sections of the high-elasticity hose;

the second connects, and it includes the screw cap of bottle lid form, and the screw cap can be screwed with screw-thread fit on the other end of stem, and the screw cap leans on its inside wall department to be equipped with a plurality of bleeder vent, and the central authorities of screw cap have a circular shape boss the central authorities of boss are embedded coaxially and are fixed with the drain pipe, and the entrance point of drain pipe flushes with the terminal surface of boss, and the piston dish is still installed with elastic expansion ground to the entrance point department of drain pipe, and the piston dish just moves the sealed cooperation with the entrance point axial sliding connection of drain pipe, and the internal diameter of the pipeline section outside the drain pipe entrance point all is greater than the internal diameter of its entrance point to when making the piston dish remove one section distance towards drain pipe exit end direction the drain pipe with the high stretch hose intercommunication.

2. Peritoneal dialysis connection device for nephrology department according to claim 1, characterized in that: the path of the arc-shaped groove is semicircular; the free end of the lock pin is of a hemispherical structure.

3. Peritoneal dialysis connection device for nephrology department according to claim 1, characterized in that: and an operating ring is arranged on the outer side of the core column.

4. Peritoneal dialysis connection device for nephrology department according to claim 1, characterized in that: the conveying channel comprises a section of curve-shaped channel which is arranged in a snake shape, and the high-elasticity hose and the core column are coaxially arranged.

5. Peritoneal dialysis connection device for nephrology department according to claim 4, characterized in that: the second flashboard is the T type, and outside the stem was stretched out to the one end of its vertical section, the stem horizontal segment leaned on its both ends department respectively to be equipped with a suspension spring to the realization is installed the suspension type of second flashboard, and under the natural state, the second flashboard did not contact with high-elastic hose.

6. Peritoneal dialysis connection device for nephrology department according to claim 1, characterized in that: piston dish deviates from a slide bar of one end rigid coupling of high-elastic hose, and the slide bar is installed internally at the installation of ellipsoid with sliding fit, and this installation body erects on the axis of drain pipe through a plurality of connecting rods, and in the slide bar passed the major axis of the installation body after sliding fit ground stretched into an installation pipe, this installation pipe erects on the axis of drain pipe, and a pressure-bearing spring is installed to the axial in the installation pipe, the tip of pressure-bearing spring with the tip of slide bar meets, and under non-operating condition, the piston dish quilt the pressure-bearing spring top is to the import end department of drain pipe.

7. Peritoneal dialysis connection device for nephrology department according to claim 6, characterized in that: and the bottom of the mounting pipe is coaxially provided with a limiting column.

8. Peritoneal dialysis connection device for nephrology department according to claim 1, characterized in that: still inserted a polished rod on the pipe wall of the entrance point of drain pipe sliding fit ground, this polished rod bottom sets up downwards towards piston dish one side slant, and the coaxial integral type in top of polished rod is connected with the threaded rod, this threaded rod with screw cap threaded connection, and when the threaded rod was twisted to the end, the bottom of polished rod pushed up just on the terminal surface of piston dish.

9. Peritoneal dialysis connection device for nephrology department according to claim 8, characterized in that: the top end of the threaded rod is exposed out of the threaded cover and fixedly connected with a steel ball, the threaded rod is also provided with a scale mark, and the scale mark is coplanar with the end face of the threaded cover when the bottom end of the polished rod just props against the end face of the piston disc.

10. Peritoneal dialysis connection device for nephrology department according to claim 1, characterized in that: the air holes are arranged on the threaded cover in a circular array.

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