CN211214694U - A controllable pulse frequency eddy current washer - Google Patents

Abstract

The utility model discloses a controllable pulse frequency eddy current type flusher. The vortex irrigator comprises a nipple, a sleeve and a handle which are sequentially connected, wherein a suction inner cylinder is embedded in the sleeve, the outer wall of the suction inner cylinder is in threaded fit with the inner wall of the sleeve, and the suction inner cylinder controls the discharge amount of flushing liquid in the sleeve through a rotating angle; the suction inner barrel is internally provided with a liquid recovery cavity, one end of the suction inner barrel, which is positioned in the sleeve, is provided with a normally closed hole which is opened when contacting with the nipple, and one end of the suction inner barrel, which is exposed out of the sleeve, is provided with a suction device which is communicated with the liquid recovery cavity. Controllable pulse frequency's eddy current type flusher, can initiatively produce controllable pulse frequency's eddy current type pulse wave when the operation, can take out the flush fluid simultaneously again.

Description

A controllable pulse frequency eddy current washer

technical field

The utility model relates to the technical field of medical devices, in particular to an eddy current flusher with a controllable pulse frequency.

Background technique

In the course of clinical treatment, various pipelines in the patient's body are required, such as indwelling gastric tubes, drainage tubes, urinary catheters, and vascular access devices (including peripheral venous catheters, central venous catheters (CVC), and peripherally inserted central venous catheters (PICC). And infusion port (Port) for flushing or/and sealing the tube. Especially since the invention of the indwelling needle in 1962, with the popularization and application of the indwelling needle in the clinic, the complications of catheter blockage have caused extremely serious complications for patients and medical staff. Big trouble.

Studies have shown that the incidence of nutrient catheter blockage is 3.70%, and the blockage of various vascular access catheters is more common. The incidence rate varies greatly according to different literature reports, up to 38.89%. Most of these medical indwelling catheters need to be reinserted after blockage. Not only increase the suffering of patients, but also may cause medical safety hazards. Therefore, how to prevent the blockage of various medical indwelling catheters has always been a research hotspot and difficulty in clinical nursing.

Scholars from various countries have successively conducted a lot of research on the influence of factors such as the properties of the fluid in the catheter, the method of flushing/sealing, the selection of the sealing solution, and patient education on the blockage of the catheter. Current research suggests that for flushing/sealing, using pulsed positive pressure flushing/sealing is the best way to prevent tube blockage, and pulse flushing is better than continuous flushing.

However, in the actual clinical nursing operation, this pulse method is completed by the nurses using the irrigator by hand. As for whether the nurses perform the above operations according to the regulations, the amount of liquid pushed each time and the pushing frequency, there is no uniform and standardized constraint mechanism. and objective evaluation standards, which cannot effectively prevent behaviors that violate operating procedures. At present, the clinical flushing operation training mainly relies on experience teaching, and the operation of ordinary flushers cannot allow nurses to master the pulse flushing technique in a short time. In addition, in practical clinical applications, nurses' understanding of "one push and one stop" Different, different techniques, eventually lead to 20%-52% of vascular access blockage related to the non-standard flushing process of nurses. Finally, the existing flushing device cannot pump back the excess liquid, which is likely to cause mutual contamination of the flushing liquid and the withdrawing liquid.

Utility model content

In order to make up for the deficiencies in the prior art, the utility model provides an eddy current flusher with a controllable pulse frequency, which can actively generate a vortex type pulse wave with a controllable pulse frequency during operation, and at the same time can extract the flushing liquid.

In order to achieve the above-mentioned purpose, the technical scheme adopted by the present utility model is as follows:

A vortex flusher with a controllable pulse frequency, comprising a nipple, a sleeve and a handle connected in sequence, wherein a suction inner cylinder is embedded in the sleeve, and the outer wall of the suction inner cylinder and the inner wall of the sleeve are threaded In cooperation, the suction inner cylinder controls the displacement of the flushing liquid in the sleeve through the rotation angle; the suction inner cylinder is provided with a recovery liquid cavity, and its end located in the sleeve is provided with a contacting the The normally closed hole that is opened when the nipple is exposed, and one end exposed to the sleeve is provided with a suction device that communicates with the recovery liquid cavity.

Further, the end of the suction inner cylinder exposed to the sleeve is provided with a symmetrical rotating handle.

Further, the distance between the outer edges of the two rotating handles is greater than or equal to the distance between the outer edges of the handle.

Further, the inner wall of the sleeve is symmetrically provided with positioning grooves for cutting threads along the axial direction, and the outer wall of the suction inner cylinder is provided with at least a pair of convex hulls matched with the positioning grooves.

Further, the nipple includes a connection end and a contact end, and the contact end extends into the sleeve.

Further, the inner diameter of the normally closed hole is equal to the outer diameter of the contact end.

Further, the connecting end is tapered.

Further, the connecting end is sleeved with a matching nipple cap.

Further, the outer wall of the sleeve is provided with a metered scale.

Further, the suction device is a pressure balloon.

Compared with the prior art, the utility model has the following beneficial technical effects:

1) Using the human anatomical feature that the maximum rotation of the hand is 180°, when the operator uses this flusher to flush and seal the tube, due to the limitation of the rotation of the hand, the operator must stop repeatedly to adjust the posture of the hand and then continue to rotate and pump. Aspirate the inner tube to complete the flushing operation, so when operating with this flusher, the medical staff is forced to perform a "push-stop-push-stop..." action, ensuring that the pulse is used every time wave wash. By adjusting the density of the threads, the dose of liquid per pulse can be controlled.

2) The washer described in the present utility model relies on the rotating suction inner cylinder to push the solution in the washer to flow out. Therefore, the medicinal liquid in the washer can form a whirlpool-like water flow with the rotation of the suction inner cylinder to generate centrifugal force. , This centrifugal force can impact the chemical liquid attached to the inner wall of the pipe, so that the molecules of the chemical liquid attached to the wall of the pipe can be washed more effectively. Therefore, this water flow method has better flushing effect than ordinary pulse waves.

3) The flushing liquid and the extraction liquid are separated into two channels to reduce the chance of contamination. The suction inner cylinder of the utility model must be closely combined with the contact part of the nipple and clamped to complete the suction task. The suction liquid is extracted from the inner wall of the suction inner cylinder; the flushing liquid is extracted from the sleeve and the suction inner cylinder. The space of the outer wall flows out, and the two passages do not communicate with each other. Therefore, it is possible to avoid the problem that the extracted liquid of the ordinary flusher remains on the inner wall of the casing, and avoid causing pollution.

4) After the inner barrel of the flusher contacts the outer barrel, the normally closed hole of the inner barrel continues to open. For patients who do not need pulse flushing, the flushing or flushing operation can be performed by directly squeezing the pressure balloon of the inner barrel. Function.

Description of drawings

Fig. 1 is the structure diagram (front view) of the eddy current washer of the controllable pulse frequency described in embodiment 1;

Fig. 2 is the sectional view of the casing structure in Fig. 1;

FIG. 3 is a partial structural schematic diagram of the suction inner cylinder in FIG. 1 .

Among them: 1-nipple; 11-connection end; 12-contact end; 2-sleeve; 21-positioning groove; 3-handle; 4-suction inner cylinder; 41-convex hull; Normally closed hole; 44-suction device; 45-rotation handle; 5-protective cap; 6-scale;

Detailed ways

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from this description. Those skilled in the art can make similar promotions without violating the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. .

Example 1

As shown in Figures 1-3, a vortex flusher with controllable pulse frequency includes a nipple 1, a sleeve 2, a handle 3 connected in sequence, and a suction inner cylinder 4 embedded in the sleeve 2. The nipple 1 includes a connecting end 11 disposed outside the sleeve 2 and a contact end 12 extending into the sleeve 2, wherein the connecting end 11 is tapered and exposed to the sleeve 2 to facilitate the connection of pipes; in addition, the connecting end 11 A matching protective cap 5 is also set to prevent the nipple 1 from being contaminated.

The outer wall of the sleeve 2 is provided with a scale 6 for convenient measurement. The inner wall of the sleeve 2 is provided with an inner thread, and the outer wall of the suction inner cylinder 4 is provided with an outer thread matching the inner thread, so that the suction inner cylinder 4 and the sleeve 2 can be threadedly matched. Therefore, by controlling the suction inner cylinder 4 The rotation angle can control the discharge amount of the flushing liquid in the casing 2. Further, the inner wall of the sleeve 2 is symmetrically provided with a positioning groove 21 for cutting the internal thread along the axial direction, which cuts the internal thread into two semicircles; When the bag 41 is rotated, the convex hull 41 is firstly engaged with the positioning groove 21. After that, every time the suction inner cylinder 4 rotates 180 degrees, the convex hull 41 will re-engage with the positioning groove 21, and the transmission of the transmission to the human hand A sense of stagnation, to achieve accurate control of the rotation operation, and then to accurately control the discharge of the flushing fluid.

The suction inner cylinder 4 is provided with a recovery liquid cavity 42 for accommodating the recovery liquid, and one end of the suction inner cylinder 4 is provided with a normally closed hole 43 . The normally closed hole 43 is a silica gel hole, and its diameter is equal to the outer diameter of the contact end 12. Because the silica gel has plasticity, when the normally closed hole 43 contacts the contact end 12, a certain pressure can be applied to open the normally closed hole 43 for clamping. , so that the liquid in the body cavity can be easily suctioned without contaminating the flushing liquid in the cannula 2 . The end of the suction inner cylinder 4 exposed to the sleeve 2 is provided with a suction device 44 which communicates with the recovery liquid chamber 42 . Specifically, the suction device 44 is a pressure balloon, which is simple, practical and low in cost.

In order to facilitate the rotation of the suction inner cylinder 4 , the exposed end of the suction inner cylinder 4 is provided with a symmetrical rotating handle 45 . The distance between the outer edges of the two rotating handles 45 is greater than or equal to the distance between the edges of the handle 3, so as to facilitate the operation of the hand.

The eddy current positive pressure flushing syringe with controllable pulse frequency described in the present utility model, its use method is as follows:

1. Take off the protective cap 5, connect the connecting end 11 of the nipple 1 to the pipe that needs to be flushed, fix the cannula 2 with one hand, rotate the suction tube 4 repeatedly with the other hand to fit the cannula 2, and pinch the suction device 44 to suck out the body cavity liquid;

2. Separate the washer and the pipeline, and remove the extracted liquid;

3. The rinser extracts the rinse liquid, and repeats the actions 1 and 2 until the rinse is clean.

Finally, it should be noted that the above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the embodiments, for those skilled in the art, it is still The technical solutions described in the foregoing embodiments can be modified, or some technical features thereof can be equivalently replaced, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be Included within the scope of protection of the present invention.

Claims (10)

1. A controllable pulse frequency eddy current flusher, comprising a nipple, a sleeve and a handle connected in sequence, it is characterized in that: the sleeve is embedded with a suction inner cylinder, and the outer wall of the suction inner cylinder and the The inner wall of the casing is threadedly matched, and the suction inner cylinder controls the displacement of the flushing liquid in the casing through the angle of rotation; the suction inner cylinder is provided with a recovery liquid cavity, which is located at one end of the casing There is a normally closed hole that opens when contacting the nipple, and a suction device that communicates with the recovery liquid cavity is provided at one end of the sleeve exposed to the nipple. 2 . The vortex flusher with controllable pulse frequency according to claim 1 , wherein the end of the suction inner cylinder exposed to the sleeve is provided with a symmetrical rotating handle. 3 . 3. The controllable pulse frequency eddy current washer according to claim 2, wherein the distance between the outer edges of the two rotating handles is greater than or equal to the distance between the outer edges of the handle. 4. The controllable pulse frequency eddy current flusher according to any one of claims 1-3, wherein the inner wall of the sleeve is symmetrically provided with positioning grooves for cutting threads along the axial direction, and the suction inner cylinder is The outer wall is provided with at least a pair of convex hulls matched with the positioning grooves. 5. The controllable pulse frequency eddy current flusher according to any one of claims 1-3, wherein the nipple comprises a connection end and a contact end, and the contact end extends into the sleeve. 6. The controllable pulse frequency eddy current washer according to claim 5, wherein the inner diameter of the normally closed hole is equal to the outer diameter of the contact end. 7. The controllable pulse frequency eddy current washer according to claim 6, wherein the connecting end is tapered. 8. The controllable pulse frequency eddy current washer according to claim 7, wherein the connecting end is sleeved with a matching nipple cap. 9 . The controllable pulse frequency eddy current flusher according to claim 8 , wherein the outer wall of the sleeve is provided with a metered scale. 10 . 10 . The controllable pulse frequency eddy current flusher according to claim 9 , wherein the suction device is a pressure balloon. 11 .

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