CN113181461B

CN113181461B - Rotary washing type double-cavity gastric lavage tube

Info

Publication number: CN113181461B
Application number: CN202110537354.XA
Authority: CN
Inventors: 白艳丽; 李慧; 张腊梅
Original assignee: First Affiliated Hospital of Henan University of Science and Technology
Current assignee: First Affiliated Hospital of Henan University of Science and Technology
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-05-17
Anticipated expiration: 2041-05-18
Also published as: CN113181461A

Abstract

A rotary washing type double-cavity gastric lavage tube comprises a tube body, the front end of which can be inserted into a gastric cavity, a liquid suction cavity for discharging the content in the gastric cavity is arranged at the central position of the tube body, an annular liquid injection cavity is arranged on the tube body and positioned at the periphery of the liquid suction cavity, washing liquid is introduced into the gastric cavity from the liquid injection cavity, a first rotating ring is rotatably matched at the front end of the tube body, the central hole of the first rotating ring is correspondingly superposed with the liquid suction cavity, a liquid collecting groove is arranged in the first rotating ring along the circumferential direction of the first rotating ring, one side of the liquid collecting groove, which faces the tube body, is communicated with the liquid injection cavity, a plurality of spray holes for spraying the washing liquid out of the liquid collecting groove and entering the gastric cavity are arranged on the first rotating ring, all the spray holes are uniformly distributed at intervals along the circumferential direction of the first rotating ring, any spray hole is distributed along the axial direction inclined to the first rotating ring, and the inclination angles of all the spray holes are the same, so that the washing liquid drives the first rotating ring to rotate when sprayed out from the spray holes; the first rotating ring is also provided with a plurality of first paddles, and the first paddles are used for stirring the washing liquid in the stomach cavity to form rotational flow in the process of rotating along with the first rotating ring. The invention is used for improving the cleaning effect of single gastric lavage, reducing the gastric lavage frequency and further saving the treatment time.

Description

Rotary washing type double-cavity gastric lavage tube

Technical Field

The invention relates to the field of medical instruments for the department of gastroenterology, in particular to a rotary-washing type double-cavity gastric lavage tube.

Background

The gastric lavage is to pour a certain component of washing liquor into the stomach cavity, mix the contents in the stomach and then extract the mixture, and the operation is repeated for many times. The purpose is to eliminate unabsorbed poison in the stomach or clean the stomach cavity, and the utility model is clinically used for preparing before stomach operation and examination. For acute poisoning such as swallowing organic phosphorus, inorganic phosphorus, alkaloid, barbiturate and the like in a short time, gastric lavage is an important rescue measure. In the gastric lavage operation process, a double-cavity gastric tube (a catheter can be used for children) is usually inserted into a gastric cavity through an esophagus, gastric contents are firstly pumped out through one cavity of the double-cavity gastric tube, then lotion is injected into the gastric cavity and pumped out through the other cavity of the double-cavity gastric tube for multiple times, the operation is repeated until poisons are cleaned, and the pumped lotion is clear and has basically the same color and luster transparency as the original color, and has no peculiar smell.

The lavage mode that above-mentioned conventional two-chamber stomach tube can realize only simply lets in the lotion and takes out the lotion, the lotion that lets in most can not contact with the stomach wall, the lotion that can contact stomach wall washing toxin only accounts for a small part that lets in the lotion, not only lead to the waste of lotion, and need make the patient experience through a lot of lavage can reach the effect, bring very big misery for the patient, more importantly is relatively poor to the clearance effect of toxin on the stomach wall, make toxin dwell time overlength on the stomach wall, valuable treatment time has been delayed.

Disclosure of Invention

The invention aims to provide a rotary-washing type double-cavity gastric lavage tube, which improves the washing effect of single gastric lavage, reduces the gastric lavage frequency and further saves the treatment time.

In order to solve the technical problems, the invention adopts the specific scheme that: a rotary washing type double-cavity gastric lavage tube comprises a tube body, the front end of which can be inserted into a gastric cavity, a liquid suction cavity for discharging the content in the gastric cavity is arranged at the central position of the tube body, an annular liquid injection cavity is arranged on the tube body and positioned at the periphery of the liquid suction cavity, washing liquid is introduced into the gastric cavity from the liquid injection cavity, a first rotating ring is rotatably matched at the front end of the tube body, the central hole of the first rotating ring is correspondingly superposed with the liquid suction cavity, a liquid collecting groove is arranged in the first rotating ring along the circumferential direction of the first rotating ring, one side of the liquid collecting groove, which faces the tube body, is communicated with the liquid injection cavity, a plurality of spray holes for spraying the washing liquid out of the liquid collecting groove and entering the gastric cavity are arranged on the first rotating ring, all the spray holes are uniformly distributed at intervals along the circumferential direction of the first rotating ring, any spray hole is distributed along the axial direction inclined to the first rotating ring, and the inclination angles of all the spray holes are the same, so that the washing liquid drives the first rotating ring to rotate when sprayed out from the spray holes; the first rotating ring is also provided with a plurality of first paddles, and the first paddles are used for stirring the washing liquid in the stomach cavity to form rotational flow in the process of rotating along with the first rotating ring.

Preferably, the front end of the pipe body is fixedly provided with a cylindrical connector, the first rotating ring is rotatably matched on the connector through a bearing, and a communicating hole used for communicating the liquid collecting tank and the liquid injection cavity is formed in the connector along the circumferential direction.

Preferably, both ends of the first paddle along the length direction of the pipe body are arc-shaped.

Preferably, the nozzles of the nozzle holes are distributed on the end surface of the first rotating ring, which is opposite to one end of the pipe body.

Preferably, the steady flow system is used for assisting the rotational flow stabilization of the washing liquid in the gastric cavity, and comprises a first balance weight arranged at the front end of the tube body and an auxiliary stirring mechanism arranged at the front position of the tube body, wherein the first balance weight is used for enabling the front part of the tube body entering the gastric cavity to be hung to be in a vertical state, the auxiliary stirring mechanism comprises a second rotating ring in sliding fit with the tube body and a plurality of second blades fixed on the second rotating ring at intervals, the second blades are in a long strip shape and are distributed along the radial direction of the second rotating ring, a second balance weight is arranged at the outer end, far away from the second rotating ring, of the second blade, the auxiliary stirring mechanism is further provided with a floating part, and the floating part is used for providing buoyancy so that the auxiliary stirring mechanism is suspended on the liquid level of the washing liquid and enables the auxiliary stirring mechanism to move along the front part of the tube body along with the lifting of the liquid level of the washing liquid.

Preferably, the floating part is an inflating ring made of flexible materials, the inner edge of the inflating ring is installed in a matched mode with the outer edge of the second rotating ring through a bearing, the outer edge of the inflating ring is fixedly connected with the second blades, the second blades can be bent in two directions through deformation of the inflating ring, and the second blades can pass through the cardia through corresponding bending.

Preferably, the floating portion is a cavity in the second blade.

Preferably, the second rotating ring is in clearance fit with the pipe body.

The front end of the tube body is provided with a first rotating ring, the washing liquid in the tube body is sprayed out from spray holes obliquely formed on the first rotating ring, and the washing liquid forms driving force for driving the first rotating ring to rotate continuously after being sprayed out. The first rotating ring is also provided with a first paddle, and the washing liquor injected into the stomach cavity is stirred to form rotational flow through the continuous rotation of the first paddle along with the first rotating ring, so that the washing liquor forms a rotational washing effect on the stomach wall in the stomach cavity, the contact probability of the washing liquor and the stomach wall is increased, and the washing force of the washing liquor on the stomach wall is increased.

In the preferred embodiment of the invention, the flow stabilizing system is further provided, the auxiliary stirring mechanism in the flow stabilizing system can rotate along with the rotational flow effect of the washing liquid, the washing liquid stops being sprayed out of the spray holes after the washing liquid is injected, and after the driving force for driving the rotational flow of the washing liquid in the gastric cavity disappears, the kinetic energy on the second paddle and the second counterweight in the auxiliary stirring system continuously acts on the washing liquid in the gastric cavity along with the inertia effect, so that the rotational flow effect of the washing liquid in the gastric cavity is slowly reduced until the washing liquid is extracted. Therefore, in the process of stopping injecting the washing liquid into the stomach cavity and extracting the washing liquid, the flow stabilizing system maintains the rotational flow effect of the washing liquid, so that more washing liquid is continuously contacted with the stomach wall, the washing effect of the washing liquid on the stomach wall is continuously kept, and the single gastric lavage effect of the invention is further improved.

Because the first paddle is positioned at the front end of the tube body, when a small amount of washing liquor is sprayed out, the first paddle drives the washing liquor to rotate, so that the washing liquor which is subsequently sprayed out and accumulated in the stomach cavity can be driven to rotate under the inertia effect, and finally, the effect of improving the single gastric lavage effect can be achieved through the rotational flow effect of a large amount of washing liquor.

A first balance weight in the flow stabilizing system hangs the tube body inserted into the gastric cavity in a vertical state, and a second paddle is arranged on the inflatable ring. The inflatable ring provides buoyancy force for the second paddle and the second counter weight to suspend in the position of the liquid level of the lotion all the time, so that the second paddle and the liquid level of the lotion are lifted together all the time in the process of pumping the lotion outwards, the kinetic energy of the second paddle and the second counter weight is guaranteed to be fully acted on the lotion, and the rotational flow effect is maintained.

The second paddle is fixed on the inflatable ring, and can be conveniently bent towards the front end and the rear end of the tube body respectively through the self deformation of the inflatable ring under the action of external force, so that the second paddle can conveniently pass through the cardia and enter and exit the gastric cavity in a bent state. Furthermore, the length of the second paddle in the invention can be set to be larger without being limited by the narrow cardia width, and the stabilizing effect on the rotational flow of the washing liquid in the stomach cavity after the first rotating ring stops spraying the washing liquid is further increased.

Drawings

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

the labels in the figure are: 1. the liquid pump comprises a pipe body, 2, a liquid injection cavity, 3, a liquid pumping cavity, 4, ribs, 5, a connector, 6, a communication hole, 7, a first paddle, 8, a liquid collecting tank, 9, a first rotating ring, 10, a spray hole, 11, a second rotating ring, 12, an inflation ring, 13, a second paddle, 14, a second balance weight, 15 and a first balance weight.

Detailed Description

As shown in FIG. 1, the rotary-washing type dual-lumen lavage tube of this embodiment comprises a tube body 1 having a front end of the tube body 1 for transesophageal insertion into the stomach lumen for injecting or withdrawing a lavage fluid, and only the front end portion of the tube body 1 is shown in FIG. 1. The central point of body 1 puts and has the drawing liquid chamber 3 that supplies stomach cavity content exhaust, lies in on body 1 and draws liquid chamber 3 periphery and have annular notes liquid chamber 2, annotates liquid chamber 2 and supplies the lotion to let in the stomach cavity, draws the chamber wall outside of liquid chamber 3 and annotates and be connected and support through rib 4 between the wall inboard of liquid chamber 2. The rear end of the tube body 1, which is not shown in fig. 1, is provided with a waste liquid tank and a liquid suction pump connected with the liquid suction chamber 3, and an injection pump and a washing liquid tank connected with the injection chamber 2, and the washing liquid in the washing liquid tank is pumped into the stomach chamber through the injection chamber 2 by the injection pump, and the liquid in the stomach chamber is pumped out by the liquid suction pump. The above is a conventional technical means in the art, and will not be described herein again.

Different from the conventional gastric tube, the front end of the tube body 1 of the present embodiment is rotatably matched with a first rotating ring 9, and a flow stabilizing system is sleeved on the front part of the tube body 1. The washing liquid is sprayed out by the first rotating ring 9, the first rotating ring 9 is driven to rotate by the spraying counterforce, and the washing liquid in the stomach cavity is driven by the first rotating ring 9 to form the rotational flow effect. At the drawing liquid in-process that the lotion injection was accomplished, maintain the continuous whirl of gastric cavity washing liquid by the stationary flow system, make the washing liquid in the gastric cavity maintain the whirl state all the time to improve the effect of single lavage, it is specific:

the front end of the tube body 1 is provided with a cylindrical connector 5, the central hole of the connector is correspondingly overlapped with the liquid pumping cavity 3, and the periphery of the connector is flush with the outer wall of the tube body 1. The upper end of the connector 5 is fixed to the pipe body 1 by means of insert-bonding or adhesive bonding, and the upper end of the connector 5 is fixed to the upper end of the first rotary ring 9 by means of a flat bearing (not shown) so that the first rotary ring 9 can rotate flexibly relative to the connector 5. The first rotating ring 9 and the connector 5 are concentrically distributed, and the central hole of the first rotating ring is correspondingly superposed with the liquid pumping cavity 3 through the central hole of the connector 5. In the first swivel ring 9, sumps 8 are arranged distributed along the circumferential direction thereof. The upper part of the liquid collecting groove 8 is open and communicated with the liquid injection cavity 2 through a plurality of communicating holes 6 arranged on the connector 5, and the first rotating ring 9 is provided with a spray hole 10 connected with the lower part of the liquid collecting groove 8. The spray holes 10 are distributed along the length direction which is inclined to the first rotating ring 9, and the inclination angles of all the spray holes 10 are the same, so that the washing liquid enters the liquid collecting tank 8 through the communicating hole 6 after being pumped into the liquid injection cavity 2 by the liquid injection pump, and then is sprayed out through the spray holes 10 simultaneously. During the spraying process of the washing liquid, the reaction force of the spraying of the washing liquid drives the first rotating ring 9 to rotate due to the inclined arrangement of the spray holes 10. The lower end spout of the spray hole 10 in this embodiment is opened on the end surface of the lower end of the first rotating ring 9, and may also be opened on the outer peripheral wall of the lower part of the first rotating ring 9, so as to achieve a similar or stronger driving force for driving the first rotating ring 9 to rotate along with the spraying of the washing liquid.

A plurality of first paddles 7 are arranged at intervals on the periphery of the first rotating ring 9, the first paddles 7 rotate synchronously with the first rotating ring 9, and the washing liquid in the stomach cavity is stirred to achieve a rotational flow state. In order to avoid the damage to the tissue when the front end of the tube body 1 enters and exits the gastric cavity through the cardia, the two ends of the first paddle 7 in the embodiment along the length direction of the tube body 1 are both arc-shaped.

The flow stabilizing system comprises a first balance weight arranged at the front end of the tube body 1 and an auxiliary stirring mechanism arranged at the front position of the tube body 1. The first weight is used to pull and suspend the front portion of the tube body 1 entering the stomach cavity to an upright state so as to assist the agitation mechanism to ascend and descend along the front portion of the tube body 1 in accordance with the change in the liquid level of the washing liquid. The first balance weight in this embodiment is the connector 5, the first swivel 9 and the bearing therebetween, the connector 5 and the first swivel 9 are both made of metal materials, and the density of the first balance weight is high, so that the portion of the tube body 1 extending into the stomach cavity can be ensured to maintain a vertical state.

The auxiliary stirring mechanism comprises a second rotating ring 11 which is in sliding fit with the pipe body 1, a plurality of second paddles 13 which are fixed on the second rotating ring 11 at intervals, and second balance weights 14 which are arranged on the second paddles 13. Clearance fit between the inner edge of second swivel 11 and body 1, smooth processing is all done with body 1 outer wall to second swivel 11 simultaneously, avoids producing the card dead among the lift in-process. The outer edge of the second rotating ring 11 is provided with a bearing, the outer ring of the bearing is connected with an inflatable ring 12 in a bonding mode, and all the second paddles 13 are fixed at the outer edge of the inflatable ring 12 at intervals, so that all the second paddles 13 can flexibly rotate relative to the second rotating ring 11. The inflatable ring 12 functions as: on one hand, the buoyancy of the whole auxiliary stirring mechanism suspended at the liquid level of the washing liquid is provided, so that the auxiliary stirring mechanism can automatically lift according to the liquid level of the washing liquid, and the rotation of the auxiliary stirring mechanism is ensured to be fully acted on the washing liquid. In other embodiments of the invention; on the other hand, the angle of the second paddle 13 can be changed through the deformation effect of the second paddle, so that the second paddle is easy to enter and exit the stomach cavity, namely: in the process of entering the stomach cavity, the second paddle 13 is forced to cause the outer end of the second paddle to rotate upwards by taking the inflatable ring 12 as the center for storage, in the process of leaving the stomach cavity, the second paddle 13 is forced to cause the outer end of the second paddle to rotate downwards for storage, and after entering the stomach cavity, the inflatable ring 12 maintains a natural state, so that the second paddle 13 is distributed along the radial direction of the tube body 1, the second paddle is convenient to rotate along with the rotational flow effect of lotion, and the second paddle continuously rotates for warm flow. By this arrangement, the length of the second paddle 13 in the present invention can be set to a large size without being limited by the narrow cardiac width, and the stabilizing effect on the swirling flow of the washing liquid in the gastric cavity after the first swivel ring 9 stops spraying the washing liquid is further increased.

The specific implementation of this example is as follows:

first, the front end portion of the tube body 1 shown in fig. 1 is inserted into the stomach cavity through the esophagus so that the lower end of the first rotary ring 9 contacts the bottom of the stomach cavity, and the liquid suction pump is activated to draw the contents of the stomach cavity.

Then the liquid pump is closed, the tube body 1 is slightly lifted to separate the first rotating ring 9 from the bottom of the stomach cavity, and then the liquid pump is started (at the moment, the front part of the tube body 1 is in a vertical state under the action of the first balance weight), and the washing liquid is injected into the liquid injection cavity 2 of the tube body 1. The washing liquid in the liquid injection chamber 2 passes through the communicating hole 6 and the liquid collecting tank 8 in sequence, then is dispersed into the spray hole 10 and is sprayed out obliquely from the lower end of the first rotating ring 9, and the second rotating ring 11 is driven to rotate. The second paddles 13 on the second swivel 11 also rotate synchronously, driving the washing liquid in the stomach cavity to swirl. During the continuous injection of the washing liquid, the second rotary ring 11 and the second paddles 13 thereon also rotate continuously, so that the washing liquid is continuously swirled. The rotational flow effect of the washing liquid stirs the washing liquid to be fully contacted with the stomach wall and improves the washing force of the washing liquid on the stomach wall so as to timely wash the toxin down from the stomach wall into the washing liquid. The washing liquid is acted on the second paddle 13 after swirling, so that the second paddle 13 starts to generate continuous rotation, and the second paddle 13 is suspended at the liquid level of the washing liquid all the time under the buoyancy action of the inflatable ring 12.

After the proper washing liquid is injected, the liquid injection pump is closed and the liquid pump is started, and the washing liquid in the gastric cavity is pumped out, so that the single gastric lavage operation is completed. After the infusion pump is turned off, the spray holes 10 stop spraying the washing liquid, and the swirling effect of the washing liquid in the gastric cavity is maintained by the second paddles 13. And the second paddle 13 descends along the tube body 1 along with the reduction of the liquid level of the washing liquid, so that the rotational flow of the washing liquid is maintained stably continuously until the washing liquid in the gastric cavity is pumped out through the liquid pumping cavity 3, and the rotational flow washing effect of the washing liquid can be maintained after the spraying of the washing liquid from the spray hole 10 is stopped. The second counterweight 14 at the outer end of the second blade 13 in this embodiment can increase the kinetic energy of the second blade 13, so that the second blade 13 has a larger inertia, which is further beneficial to maintaining the stability of the rotational flow.

Claims

1. The utility model provides a spin-washing formula two-chamber lavage tube, includes body (1) that the front end can insert the stomach chamber, and the central point of body (1) puts and has the drawing liquid chamber (3) that supplies stomach chamber content exhaust, and it has annular notes liquid chamber (2) to lie in drawing liquid chamber (3) periphery on body (1), annotates liquid chamber (2) and supplies the lotion to let in the stomach chamber, its characterized in that: the front end of the tube body (1) is in running fit with a first rotating ring (9), a central hole of the first rotating ring (9) is correspondingly overlapped with the liquid pumping cavity (3), a liquid collecting groove (8) distributed along the circumferential direction of the first rotating ring (9) is arranged in the first rotating ring (9), one side, facing the tube body (1), of the liquid collecting groove (8) is communicated with the liquid injection cavity (2), a plurality of spray holes (10) for spraying washing liquid from the liquid collecting groove (8) and entering the stomach cavity are formed in the first rotating ring (9), all the spray holes (10) are uniformly distributed along the circumferential direction of the first rotating ring (9) at intervals, any spray hole (10) is distributed along the axial direction inclined to the first rotating ring (9), and the inclined angles of all the spray holes (10) are the same, so that the first rotating ring (9) is driven to rotate when the washing liquid is sprayed out from the spray holes (10); a plurality of first paddles (7) are also arranged on the first rotating ring (9), and the first paddles (7) are used for stirring the washing liquid in the stomach cavity to form rotational flow in the process of rotating along with the first rotating ring (9);

the device also comprises a steady flow system for assisting the rotational flow stabilization of the washing liquor in the gastric cavity, the steady flow system comprises a first balance weight (15) arranged at the front end of the tube body (1) and an auxiliary stirring mechanism arranged at the front part of the tube body (1), the first balance weight (15) is used for pulling and hanging the front part of the tube body (1) entering the gastric cavity to be in a vertical state, the auxiliary stirring mechanism comprises a second rotating ring (11) in sliding fit with the tube body (1) and a plurality of second blades (13) fixed on the second rotating ring (11) at intervals, the second blades (13) are in a long strip shape and are distributed along the radial direction of the second rotating ring (11), a second balance weight (14) is arranged at the outer end of the second paddle (13) far away from the second rotating ring (11), the auxiliary stirring mechanism is also provided with a floating part which is used for providing buoyancy so as to enable the auxiliary stirring mechanism to be suspended on the liquid level of the washing liquid, and the auxiliary stirring mechanism moves up and down along the front part of the pipe body (1) along with the lifting of the liquid level of the washing liquid;

the floating part is an inflatable ring (12) made of flexible materials, the inner edge of the inflatable ring (12) is installed in a matched mode with the outer edge of the second rotating ring (11) through a bearing, the outer edge of the inflatable ring (12) is fixedly connected with the second blades (13), and the second blades (13) can be bent in two directions through deformation of the inflatable ring (12), so that the second blades (13) can pass through the cardia through corresponding bending.

2. A spin-on dual lumen lavage tube as claimed in claim 1 wherein: the front end of the pipe body (1) is fixedly provided with a cylindrical connector (5), a first rotating ring (9) is rotationally matched on the connector (5) through a bearing, and a communicating hole (6) used for communicating the liquid collecting tank (8) and the liquid injection cavity (2) is formed in the connector (5) along the circumferential direction.

3. A spin-on dual lumen lavage tube as claimed in claim 1 wherein: both ends of the first paddle (7) along the length direction of the pipe body (1) are arc-shaped.

4. A spin-on dual lumen lavage tube as claimed in claim 1 wherein: the nozzles of the nozzle holes (10) are distributed on the end surface of one end of the first rotating ring (9) opposite to the pipe body (1).

5. A spin-on dual lumen lavage tube as claimed in claim 1 wherein: the second rotating ring (11) is in clearance fit with the pipe body (1).