CN214965548U - Rectum vacuum water bag - Google Patents

Abstract

The utility model provides a rectum vacuum water pocket for nuclear magnetic resonance imaging inspection, include: the water sac comprises a water sac body, a catheter and four pipe heads, wherein the water sac body is positioned at the front end part of the water sac body; the catheter at the front end part of the double-cavity water sac body is provided with a first pipe head, and the water sac is sealed on the surface of the catheter; the catheter at the rear end part of the double-cavity water sac body is provided with a second pipe head and two third pipe heads; the two third pipe heads are arranged at the side end of the guide pipe; the catheter is provided with an inner cavity and an outer cavity; the second pipe head is communicated with the inner cavity, and the third pipe head is communicated with the outer cavity; the outer cavity is communicated with the water sac through holes. Due to the existence of the rectum water sac medium, the rectum tube cavity is properly filled with the tube wall to be unfolded, the gas in the rectum is completely emptied, the covering of the collapsed intestinal tube and the deepened rectal plica to lesion is avoided, and MRI signals are clearer.

Description

Rectum vacuum water bag

Technical Field

The utility model relates to a nuclear magnetic resonance imaging inspection technical field especially relates to a rectum vacuum water pocket.

Background

For rectal cancer, deep rectal infiltration type endometriosis and other diseases, preoperative Magnetic Resonance Imaging (MRI) examination is conventional. Before MRI examination, the colon is usually cleaned by intestinal lavage, however, a large amount of gas remains in the rectum ampulla, which affects the uniformity of the magnetic field and further interferes the MRI signal.

The middle and lower segments of the normal rectum are in a closed or semi-closed state, so that the anatomical structures and signal changes of a mucous layer, a muscular layer and a serosal layer of the rectum are difficult to accurately evaluate, and a collapsed intestinal canal and deepened rectal plica can shield pathological changes, so that the detailed evaluation of intestinal wall pathological changes is not accurate enough, and further the rectal cancer stage is influenced. Pelvic endometriosis causes extensive pelvic adhesion, and rectal traction deformation causes anatomical morphology disorder of the rectum, which causes difficulty in diagnosis.

The coupling agent gel filled in the rectum can properly fill the ampulla of the rectum to stretch the wall of the rectum, but the viscosity of the coupling agent gel is high, so that the coupling agent gel is difficult to avoid mixing with bubbles during injection, and the coupling agent gel mixed with the bubbles can also cause uneven signals.

Physiological saline is directly injected into the rectum to play a role in shimming, but in the MRI scanning process, the rectum peristalsis is caused due to the fact that the anus is actively tightened by a patient, and MRI signals are interfered.

The endorectal coil can provide more detailed and accurate imaging data. In clinical examination, patients cannot tolerate the discomfort of inserting the rectal coil into the anus, bleeding, falling and other phenomena can also occur in the examination process, and the patients cannot tolerate the heat effect in high-field MRI examination, which finally leads to examination failure. Meanwhile, the rectal coil is expensive and limited by the use times, and is difficult to be widely applied in China at present.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention has been made to provide a rectal vacuum water bladder that overcomes or at least partially solves the above problems.

In order to solve the problem, the utility model discloses a rectum vacuum water pocket for nuclear magnetic resonance imaging inspection, include:

the water bag comprises a water bag body, a catheter and four tube heads, wherein the water bag is positioned at the front end part of the water bag body;

the catheter is provided with a first tube head which is positioned at the front end part of the double-cavity water sac body, and the water sac is sealed on the surface of the catheter;

the catheter is also provided with a second pipe head and two third pipe heads which are positioned at the rear end part of the double-cavity water sac body;

the two third pipe heads are arranged at the side end of the guide pipe;

the catheter is provided with an inner cavity and an outer cavity;

the second pipe head is communicated with the inner cavity, and the third pipe head is communicated with the outer cavity;

the outer cavity is communicated with the water sac through holes.

Preferably, the inner cavity is not in communication with the water bladder.

Preferably, two of said third stubs are symmetrically distributed with respect to said conduit.

Preferably, the length of the double-cavity water sac body is 30cm, and the length of the first pipe head is 1 cm.

Preferably, the surface of the conduit is provided with a scale.

Preferably, the first cartridge is connected with the sealing component.

Preferably, the second pipe head is connected with an infusion three-way pipe or a sealing component.

Preferably, the third pipe head is connected with an infusion three-way pipe or a sealing element.

Preferably, the sealing component is a plug.

Preferably, the water sac is made of transparent soft silica gel.

Preferably, the inner cavity and the outer cavity are cavities made of transparent hard plastics.

Preferably, one end of the plug is a closed end, and the other end of the plug is an open end;

the open end is provided with a connecting part matched with the first pipe head and the third pipe head;

the connecting part is a screw thread or a clamping groove.

The utility model discloses a following advantage:

due to the existence of the rectum water sac medium, the rectum tube cavity is properly filled with the tube wall to be unfolded, the gas in the rectum is completely emptied, the covering of the collapsed intestinal tube and the deepened rectal plica to lesion is avoided, and MRI signals are clearer.

Drawings

Fig. 1 is a schematic structural diagram of a rectal vacuum water sac of the present invention;

fig. 2 is a schematic view of a plug of a rectal vacuum water sac according to the present invention;

fig. 3 is a schematic view of an infusion three-way pipe of the rectal vacuum water sac of the present invention.

The drawings illustrate the following:

1. a dual-chamber water bladder body; 2. a plug; 3. a three-way pipe for infusion; 12. a first tube head; 13 a second tube head; 14. a third tube head; 15. a water bladder; 16. an inner cavity; 17. a hole; 18. an outer cavity; 19. calibration; 21. an open end; 22. a closed end; 31. a transfusion end; 32. a main communication end; 33. a side through end; 34. and (4) controlling the valve.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the embodiments.

One of the core ideas of the utility model is that the water sac body comprises a water sac, a conduit and two-cavity water sac bodies with four pipe heads, wherein the water sac is positioned at the front end part of the two-cavity water sac body; the catheter at the front end part of the double-cavity water sac body is provided with a first pipe head, and the water sac is sealed on the surface of the catheter; the catheter at the rear end part of the double-cavity water sac body is provided with a second pipe head and two third pipe heads; the two third pipe heads are arranged at the side end of the guide pipe; the catheter is provided with an inner cavity and an outer cavity; the second pipe head is communicated with the inner cavity, and the third pipe head is communicated with the outer cavity; the outer cavity is communicated with the water sac through holes.

Referring to fig. 1-3, there are shown schematic structural diagrams of a rectal vacuum water sac for mri examination of the present invention, which may specifically include:

the water bag comprises a water bag 15, a catheter and a double-cavity water bag body 1 with four pipe heads, wherein the water bag 15 is positioned at the front end part of the double-cavity water bag body 1; the catheter at the front end part of the double-cavity water sac body 1 is provided with a first pipe head 12, and the water sac 15 is sealed on the surface of the catheter; the catheter at the rear end part of the double-cavity water sac body 1 is provided with a second pipe head 13 and two third pipe heads 14; the two third pipe heads 14 are arranged at the side end of the catheter; the catheter is provided with two cavities, namely an inner cavity 16 and an outer cavity 18; the second tip 13 is in communication with the inner chamber 16 and the third tip 14 is in communication with the outer chamber 18; the outer cavity 18 communicates with the water bladder 15 through a hole 17.

In the above embodiment, the water bag 15 is located at the front end of the dual-chamber water bag body 1; the catheter is provided with a first tube head 12 which is positioned at the front end part of the double-cavity water sac body 1, and the water sac 15 is sealed on the surface of the catheter; the catheter is also provided with a second pipe head 13 and two third pipe heads 14 which are positioned at the rear end part of the double-cavity water sac body 1; the inner cavity 16 is not communicated with the water bag 15; wherein, the water sac 15 is fusiform and is fused with the outer wall of the double-cavity water sac body 1. The double-cavity water sac body 1 is provided with an inner cavity 16 and an outer cavity 18; the inner cavity 16 of the double-cavity water sac body 1 is not communicated with the outer cavity 18 and is communicated with the second pipe head 13 and the first pipe head 12 of the double-cavity water sac body 1. The second pipe head 13 and the third pipe head 14 are connected with the three-way infusion pipe 3, and the first pipe head 12 is connected with the plug 2.

Understandably, the outer cavity 18 of the double-cavity water sac body 1 is communicated with the water sac 15, the surface of the outer cavity 18 is provided with holes 17, and in order to achieve better effect, the outer cavity can be provided with paired holes 17; the holes 17 prevent the water bag 15 from communicating with the first pipe head 12 and communicate with the third pipe head 14 which is arranged in pairs at the side of the catheter. The paired third pipe heads 14 are connected with the plug 2 and the three-way infusion pipe 3; before MRI examination, the double-cavity water sac body 1 is inserted into the anus, physiological saline or contrast agent with certain concentration ratio is injected into the water sac 15 through the three-way infusion pipe 3, the rectum is properly filled, the wall of the rectum is stretched, the gas interference of the ampulla of the rectum is eliminated, and the display of the whole layer of the wall of the intestinal canal is facilitated. The physiological saline in the water bag 15 has the characteristics of water, the signal is homogeneous, no chemical shift artifact exists, and the sensitivity and the accuracy of MRI examination can be improved; after the examination is finished, the patient can automatically discharge the liquid in the water sac 15 to pull out the water sac 15 to finish the examination; when the double-cavity water bag is used, the inner cavity 16 of the double-cavity water bag body 1 is filled with water in vitro, specifically, normal saline is filled in the three-way infusion pipe 3 through the second pipe head 13, and the first pipe head 12 is sealed by the plug 2 after gas is exhausted through the first pipe head 1.

In one embodiment, two of the third headers 14 are symmetrically distributed with respect to the conduit.

It can be understood that when the medical tube is used, the outer cavity and the water bag 15 are filled with water in vitro, specifically, a three-way infusion tube 3 is filled with physiological saline through a third tube head 14 on the side of the catheter to fill the water bag 15, the body position is adjusted in a rotating mode, gas in the cavity of the water bag 15 is discharged from the other third tube head 14, after the gas is completely discharged, liquid in the water bag 15 is emptied as much as possible in a hand extrusion mode, the third tube head 14 is sealed by the plug 2, and the two symmetrically distributed third tube heads are used, so that the gas is easier to discharge in operation.

In one embodiment, the length of the double-cavity water sac body 1 is 30cm, and the length of the first pipe head 12 is 1 cm; the total length of the double-cavity water sac body 1 is 30cm, the longitudinal diameter of the water sac 15 is 15cm, the volume of filled liquid is about 40ml, and the distance between the water sac 15 and the first pipe head 1 of the front end portion (the end close to the water sac 15) is about 1 cm.

In one embodiment, the surface of the catheter is provided with scales 19, and when the double-cavity water sac body 1 is inserted into a body for about 20cm in use, the scales 19 on the surface of the catheter are used for relatively precise control; the normal saline is filled into the three-way infusion tube 3 connected with the third tube head 13 at the side of the double-cavity water bag body 1, and the infusion is stopped when the patient feels full.

In one embodiment, the second pipe head 13 is connected with the three-way infusion pipe 3 or a sealing component; the third pipe head 14 is connected with the three-way infusion pipe 3 or a sealing element.

In the above embodiment, the sealing component is the plug 2.

Understandably, after the medical double-cavity water sac body is inserted into a body, the transfusion three-way pipe 3 connected with the third pipe head 14 on the side of the double-cavity water sac body 1 is filled with normal saline, the patient stops injecting the liquid when feeling full expansion, after MRI examination is finished, the patient can unscrew the plug 2 at the third pipe head 14 by self, pull the double-cavity water sac body 1 outwards from the anus, discharge the liquid, and finally pull the double-cavity water sac body 1 out of the anus completely.

In one embodiment, the water bag 15 is made of transparent soft silica gel; the inner chamber 16 and the outer chamber 18 are made of transparent rigid plastic.

Understandably, the water sac 15 of the double-cavity water sac body 1 is made of soft silica gel, is transparent, soft and has certain ductility. The inner cavity 16 and the outer cavity 18 of the double-cavity water sac body 1 are made of hard plastics, are transparent and can also guide the water sac into the rectum.

In one embodiment, one end of the plug 2 is a closed end 22, and the other end is an open end 21; the closed end 22 is closed, the open end 21 is not closed and is connected with the connecting tube head, the inner surface of the plug 2 is provided with threads which are connected with the third tube head 14 and the first tube head 12 and can be screwed.

The open end 21 is provided with a connecting part matched with the first pipe head 12 and the third pipe head 14; the connecting part is a thread or a clamping groove; for closing and opening the first 12 and third 14 cartridge for deflation or sealing the cartridge.

Understandably, the rectal water sac for MRI examination comprises a double-cavity water sac body 1, as shown in fig. 1, wherein the front end part (the end close to the water sac 15) is provided with a first pipe head 12, and the surface is provided with threads; the rear end part (the end far away from the water sac 15) is provided with a second pipe head 13 which is consistent with the double-cavity water sac body 1 in shape, two third pipe heads 14 are arranged on the side of the rear end part, and the surface of each pipe head is provided with threads. The inner cavity 16 of the double-cavity water sac body 1 is filled with water in vitro. The second pipe head 13 is connected with the three-way transfusion pipe 3, the physiological saline is filled, the screw thread of the first pipe head 12 is screwed with the screw thread arranged in the open end 21 of the choke plug 2 after the gas is discharged, and the first pipe head 12 is closed.

In one embodiment, the outer lumen 18 and water bladder 15 are first filled with water extracorporeally. The third tube head 14 at the side of the rear end part is connected with the three-way infusion tube 3 and is filled with normal saline, the water bag 15 is filled, liquid enters the water bag 15 through the hole 17 on the surface of the outer cavity 18, the position of the liquid is adjusted by rotating, gas in the bag cavity and the filled liquid are discharged through the hole 17 on the surface of the outer cavity 18, the other third tube head 14 is discharged out of the double-cavity water bag body 1, after the gas is completely discharged, the liquid in the water bag 15 is emptied as much as possible in a mode of manual extrusion, and then the third tube head 14 at the side of the rear end part is sealed by the plug 2; the three-way infusion pipe 3 comprises a main through end 32, a side through end 33, an infusion end 31 and a control valve 34, wherein the control valve 34 is used for controlling the conduction modes of the main through end 32, the side through end 33 and the infusion end 31 and is used for infusing and discharging gas from the side through end 33.

Understandably, after the MRI examination is finished, the patient can unscrew the plug 2 at the third tube head 14 on the side of the rear end part by himself, pull the double-cavity water sac body 1 outwards from the anus, discharge liquid, and finally pull the double-cavity water sac body 1 out of the anus completely.

The beneficial effects of the utility model include, because the existence of rectum water pocket medium, gaseous MRI signal of avoiding of gas interference in the evacuation rectum completely, normal saline has the characteristic of water in the water pocket, and the signal homogeneity does not have the chemical shift artifact, can improve the sensitivity and the accuracy of MRI inspection.

The beneficial effects of the utility model still include, because the existence of rectum water pocket medium, make the sufficient pipe wall of rectum lumen moderate degree can stretch out, avoid the rectum fold of collapsing intestines tube and deepening to the shielding of pathological change, the sufficient rectum of moderate degree makes each layer structure of rectum wall show more clearly, and then makes the stage of rectum cancer more accurate.

The beneficial effects of the utility model include still that, because the existence of rectum water pocket medium for rectum endometriosis adhesion warp the rectum lumen moderate degree and is sufficient, and the pipe wall can be unfolded, and the more gradual way, the degree of depth, the week footpath of indulging of better aassessment rectum pathological change, and then the decision is whether to excise the intestines tube.

The beneficial effects of the utility model include still that, because the existence of rectum water pocket medium, make the sufficient pipe wall of rectum lumen moderate degree can be unfolded, gaseous in the evacuation rectum completely, avoid the rectum canal that collapses and the shelter of the rectum fold of deepening to the pathological change for the MRI signal is more clear.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The rectum vacuum water bag provided by the utility model is introduced in detail, and the principle and the implementation mode of the utility model are explained by applying a specific example, and the explanation of the above embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims (10)

1. A rectal vacuum water sac for magnetic resonance imaging examination, comprising:

the water bag comprises a water bag body, a catheter and four tube heads, wherein the water bag is positioned at the front end part of the water bag body;

the catheter is provided with a first tube head which is positioned at the front end part of the double-cavity water sac body, and the water sac is sealed on the surface of the catheter;

the catheter is also provided with a second pipe head and two third pipe heads which are positioned at the rear end part of the double-cavity water sac body;

the two third pipe heads are arranged at the side end of the guide pipe;

the catheter is provided with an inner cavity and an outer cavity;

the second pipe head is communicated with the inner cavity, and the third pipe head is communicated with the outer cavity;

the outer cavity is communicated with the water sac through holes.

2. The rectal vacuum water bladder of claim 1, wherein the inner cavity is not in communication with the water bladder.

3. The rectal vacuum water bladder of claim 1, wherein two of the third tube stubs are symmetrically distributed with respect to the catheter.

4. The rectal vacuum water sac according to claim 1, wherein the surface of the conduit is provided with a scale.

5. The rectal vacuum water sac of claim 1, wherein the first tube head is connected with a sealing element.

6. The rectal vacuum water sac according to claim 1, wherein the second pipe head is connected with a three-way infusion pipe or a sealing element;

the third pipe head is connected with the three-way pipe for transfusion or the sealing element.

7. The rectal vacuum water sac according to any one of claims 5 to 6, wherein the sealing element is a plug.

8. The rectal vacuum water sac according to claim 1, wherein the water sac is a sac body made of transparent soft silica gel.

9. The rectal vacuum water bladder of claim 1, wherein the inner and outer chambers are chambers made of transparent rigid plastic.

10. The rectal vacuum water sac according to claim 7, wherein the plug has one end closed and the other end open;

the open end is provided with a connecting part matched with the first pipe head and the third pipe head;

the connecting part is a thread or a clamping groove.

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