Disposable anus pressure measuring catheter with cuff

By designing an anal manometry catheter with a cuff, the function of the anal sphincter can be assessed by utilizing changes in air pressure, thus solving the problem of subjective misjudgment in existing technologies and achieving more accurate diagnostic results.

CN224023570UActive Publication Date: 2026-03-24NINGXIA MEDICAL UNIVERSITY GENERAL HOSPITAL
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In existing technologies, methods for assessing the function of the external anal sphincter through manual techniques are greatly influenced by the examiner's subjective experience, resulting in insufficient accuracy of diagnostic results.

Method used

A disposable anal pressure monitoring catheter with a cuff was designed, comprising a main tube, an inflation tube, and a cuff. It indirectly assesses anal sphincter function by measuring changes in air pressure data within the anus. It is equipped with a scale to control the insertion depth, and a one-way valve is installed on the inflation tube to prevent gas leakage. The end of the cuff is provided with a closed end and a vent to improve rigidity.

Benefits of technology

It improves the accuracy of anal sphincter function assessment, reduces the risk of misjudgment by doctors' subjective judgment, and enhances the objectivity and precision of diagnosis.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224023570U_ABST
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Abstract

The utility model discloses a disposable anus pressure measuring catheter with a cuff. The disposable anus pressure measuring catheter with the cuff comprises a main tube, an inflation tube is installed on one side of the main tube, an air bag is installed at the front end of the main tube, a pressure measuring instrument is installed at the end, away from the air bag, of the main tube, and inflation equipment is installed at one end of the inflation tube. According to the disposable anus pressure measuring catheter with the cuff, the main tube, the inflation tube and the air bag are arranged, so that the functional recovery condition of the anal sphincter can be indirectly measured conveniently by measuring the change of air pressure data in the anus, and the disposable anus pressure measuring catheter is used by a doctor; the human factor influence of subjectivity of doctors on operation anesthesia and recovery condition judgment of the patients is reduced, misjudgment is not prone to being caused, and the diagnosis accuracy of the doctors is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially relates to disposable take cover sac's anal manometry catheter. BACKGROUND

[0002] The patients after caudal block and the patients with incomplete spinal cord injury and recovery often need to evaluate the external anal sphincter function to evaluate the caudal block effect and the degree of incomplete spinal cord injury and the recovery after injury.

[0003] The external anal sphincter contraction function is often evaluated by manual method, that is, the doctor feels the contraction of the anus by inserting fingers into the anus, and judges the muscle strength according to the contraction degree and contraction time. The method is simple and convenient, but is greatly affected by the subjective experience of the examinee, which may cause misjudgment of the recovery of the patient, and further reduces the accuracy of the diagnostic result.

[0004] Therefore, it is necessary to provide a disposable anal manometry catheter with a sleeve to solve the above technical problems. UTILITY MODEL CONTENT

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a disposable anal manometry catheter with a sleeve, which can improve the accuracy of diagnosis.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The disposable anal manometry catheter with a sleeve comprises: a main pipe, an inflation pipe installed on one side of the main pipe, a gas bag made of medical rubber material installed at the front end of the main pipe, a gas pressure instrument installed at the end of the main pipe away from the gas bag, and an inflation device installed at one end of the inflation pipe.

[0008] Preferably, a first connecting head is installed at the tail of the main pipe, and the first connecting head is connected with the manometry instrument.

[0009] Preferably, a second connecting head is installed at one end of the inflation pipe, and the second connecting head is connected with the inflation device.

[0010] Preferably, a scale is arranged on the main pipe.

[0011] Preferably, a one-way valve is installed on the inflation pipe.

[0012] Preferably, a closed end is arranged on the main pipe in combination with the gas bag, and a vent hole is arranged on the main pipe.

[0013] Preferably, a sticking layer is arranged between the gas bag and the main pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model discloses a main pipe, inflation pipe and air bag are set up, can conveniently through the pressure data change in anus inside, the functional recovery condition of sphincter of anus is indirectly measured, is used for doctor, has reduced the subjective nature of doctor to the artificial factor influence of patient operation and recovery condition judgement, is not easy to cause misjudgment, improved the accuracy of doctor diagnosis.

[0016] (2) The utility model discloses a scale is set up on the main pipe, and the depth of main pipe insertion anus can be conveniently checked by the person with precision control.

[0017] (3) The utility model discloses a one-way valve is installed on inflation pipe, can control the gas flow in inflation pipe, prevents the gas in inflation pipe from leaking from the outer end of inflation pipe.

[0018] (4) The utility model discloses a closed end is set up on one end of main pipe and is set up air hole, can improve the rigidity of air bag, makes it more easily through anus. DRAWINGS

[0019] Figure 1 The utility model provides a disposable sleeve bag's anal pressure measuring catheter's structure schematic view;

[0020] Figure 2 For Figure 1 The utility model discloses a disposable sleeve bag's anal pressure measuring catheter's structure schematic view;

[0021] Among them, the name corresponding to the sign is: 1-main pipe, 2-inflation pipe, 3-air bag, 4-first connecting head, 5-second connecting head, 6-scale, 7-one-way valve, 8-closed end, 9-air hole, 10-sticking layer. SPECIFIC IMPLEMENTATION

[0022] The utility model will be further explained below combining with the drawings and examples, and the mode of the utility model includes but is not limited to the following examples. Example

[0023] As Figures 1-2As shown in the utility model provides a disposable with sleeve sac's anal pressure measuring catheter, including: main pipe 1, one side of main pipe 1 installs inflation pipe 2, the front end of main pipe 1 installs the air bag 3 of medical rubber material, main pipe 1, inflation pipe 2 can adopt medical rubber, silica gel etc. Material is made, with certain hardness, can be bent, the length of specific main pipe 1 is 15cm, diameter 5.33mm, the inflation capacity of air bag 3 is at 5-20ml, the end of main pipe 1 away from air bag 3 connects air pressure instrument, one end of inflation pipe 2 connects needle cylinder or other can conveniently measure the inflation equipment of inflation capacity. When using, the end of main pipe 1 with air bag 3 is placed into the anus 2~3cm before sacral block, connects pressure measuring instrument, inflates 5~10mL, makes air bag 3 inflate in the anus, then tries to let the patient contract the anus, measures the maximum contraction pressure in the anus, after sacral block 5~15min, carries out the same operation, the maximum contraction pressure in the anus drops obviously, namely is the effect of good block. For the patient of incomplete spinal cord injury, the use mode of the device is same as above, by comparing the change of the maximum contraction pressure in the anus of the injury recovery period, the recovery condition of incomplete spinal cord injury is determined. The device determines the data change of the maximum contraction pressure in the anus, as the recovery basis of auxiliary determination of external anal sphincter function, reduces the influence of the subjectivity of the examiner on the determination of the patient's recovery condition, and is not easy to cause misjudgment. In addition, main pipe 1, inflation pipe 2 and air bag 3 are disposable.

[0024] By setting main pipe 1, inflation pipe 2 and air bag 3, the pressure data change in the anus can be conveniently measured, the functional recovery of the anal sphincter is indirectly measured, the doctor uses, reduces the influence of the subjectivity of the doctor on the artificial factor of the patient's operation and recovery condition determination, is not easy to cause misjudgment, improves the accuracy of doctor's diagnosis. EMBODIMENT

[0025] As Figure 1 The first connecting head 4 is used for connecting the pressure measuring instrument, and the first connecting head 4 can be made of medical plastic or rubber material and can be conveniently connected with the measuring pipe opening of the pressure measuring instrument. The second connecting head 5 is installed at one end of the inflation pipe 2, and the inflation pipe 2 can be connected with the inflation equipment (such as a needle cylinder with a capacity of more than 20ml) through the second connecting head 5. When in use, the inflation equipment is used to inflate the inflation pipe 2, so that the internal air pressure of the main pipe 1 connected therewith is increased, the volume of the air bag 3 is expanded, and the pressure measuring instrument measures the air pressure in the main pipe 1 (air bag 3).

[0026] The first connecting head 4 and the second connecting head 5 are arranged, so that the pressure measuring instrument and the inflation equipment can be conveniently connected. EMBODIMENT

[0027] As Figure 1As shown, a scale 6 is provided on the main tube 1. When in use, the main tube 1 is inserted into the anus. The insertion depth of the main tube 1 can be read by the scale line on the scale 6 that is exposed at the anus, so as to conveniently control the insertion depth of the main tube 1 into the anus.

[0028] By setting a scale 6 on the main tube 1, the examiner can easily and accurately control the depth of the main tube 1 inserted into the anus. Example

[0029] like Figure 1 As shown, a one-way valve 7 is installed on the inflation pipe 2. When in use, after the inflation device has finished inflating and filled the inflation pipe 2 with the standard capacity of gas, the inflation device is disconnected. Under the action of the one-way valve 7, the gas in the inflation pipe 2 will not leak out until the pressure gauge is disconnected from the tail of the main pipe 1, and the gas in the pipe is discharged from the tail of the main pipe 1.

[0030] By installing a one-way valve 7 on the inflation tube 2, the flow direction of gas in the inflation tube 2 can be controlled to prevent gas from leaking from the outer end of the inflation tube 2. Example

[0031] like Figure 2 As shown, in this embodiment, the end of the main tube 1 that is inserted into the airbag 3 is provided with a closed end 8, which is round in shape and fits the inner wall of the airbag 3. Multiple ventilation holes 9 are provided on the side wall of the main tube 1. When in use, when the end of the main tube 1 with the airbag 3 is inserted into the anus, the airbag 3 is not easy to bend because the end of the main tube 1 fits the inner wall of the airbag 3, and it is easier to insert into the anus. When inflated, the gas in the main tube 1 is discharged into the airbag 3 through the ventilation holes 9, causing the airbag 3 to expand.

[0032] By setting a closed end 8 that fits the airbag 3 at one end of the main tube 1 and setting a vent 9, the rigidity of the airbag 3 can be improved, making it easier to pass through the anus. Example

[0033] like Figure 2 As shown, an adhesive layer 10 is installed between the airbag 3 and the main tube 1. The adhesive layer 10 can be made of medical-grade environmentally friendly adhesive material. The airbag 3 and the main tube 1 are bonded and sealed by the adhesive layer 10.

[0034] By installing an adhesive layer 10 between the airbag 3 and the main tube 1, the connection and fixation of the airbag 3 and the main tube 1 can be easily achieved.

[0035] Working principle: when in use, for patients with sacral block, before sacral block, the end of the main pipe 1 with the air bag 3 is placed in the anus 2-3 cm, connected to the pressure measuring instrument, inflated 5-10 ml, so that the air bag 3 is inflated in the anus, then try to make the patient contract the anus, measure the maximum contraction pressure in the anus; 5-15 minutes after sacral block, the same operation is carried out, the depth of insertion and the amount of inflation are consistent, the maximum contraction pressure in the anus is measured, which is significantly decreased, that is, the blocking effect is good.

[0036] For patients with incomplete spinal cord injury, the use of the device is the same as above, by comparing the changes of the maximum contraction pressure of the anus in the recovery period of the injury, the recovery of the incomplete spinal cord injury is determined, if the measured pressure increases, the incomplete spinal cord injury gradually recovers.

[0037] The device determines the data change of the maximum contraction pressure of the anus as the recovery basis of the function of the external anal sphincter, so that the subjectivity of the examiner to the determination of the patient's recovery is reduced, and the examiner's misjudgment is not easy.

Claims

1. A disposable anal pressure monitoring catheter with a cuff, characterized in that, include: The main tube (1) has a closed end (8) at one end and multiple ventilation holes (9) on its side wall. The airbag (3) is fixed to the front end of the main tube (1) by the adhesive layer (10) and covers the vent (9); An air inflator (2) is located on one side of the main pipe (1) and communicates with the interior of the main pipe; The end of the main tube (1) away from the airbag (3) is connected to a barometer, and the end of the inflation tube (2) away from the main tube is connected to an inflation device; The inflation tube (2) is equipped with a one-way valve (7).

2. The disposable anal pressure monitoring catheter with a cuff according to claim 1, characterized in that, The main tube (1) is equipped with a scale (6).