CN206548973U - A kind of pair of capsule multi-cavity urethral catheter - Google Patents

Abstract

The utility model relates to a double-capsule multi-cavity urinary catheter, which comprises a urinary catheter, an internally fixed airbag cavity and an externally fixed airbag cavity; the urinary catheter comprises an internally fixed airbag cavity, an externally fixed airbag cavity, a drainage cavity and a bladder irrigation cavity; the head end of the urinary catheter is sequentially provided with an internal fixation airbag closer to the head end and an external fixation airbag farther from the head end along its length direction; the internal fixation airbag cavity communicates with the internal fixation airbag; the The external fixation airbag cavity communicates with the external fixation airbag; both the drainage cavity and the middle section of the bladder irrigation cavity are provided with a negative pressure accommodation cavity, and along the liquid flow direction, between the liquid outlet end of the negative pressure accommodation cavity and the drainage cavity, the negative pressure pot A one-way valve is arranged between the liquid outlet and the bladder flushing cavity. The utility model avoids the pollution caused by the bladder flushing fluid and drainage backflow, and the design of the negative pressure accommodation chamber avoids the time-consuming and labor-intensive process for the doctor to pressurize and flush the bladder. contamination in the process.

Description

A double capsule multi-lumen urinary catheter

technical field

The utility model relates to a medical device, in particular to a double-capsule multi-cavity urinary catheter.

Background technique

Urinary catheters are often used to drain urine before and after clinical operations at home and abroad, but for patients in urology, if they are patients after prostate resection or bladder tumor resection, the urinary catheter must function as a urinary bladder on the one hand. The function of flushing prevents the formation of blood clots in the bladder. On the other hand, it is often used to increase the volume of the air bag and give back traction to achieve the purpose of compression and hemostasis; for patients after radical prostatectomy, the urinary catheter is used It plays the role of drainage of urine, and on the other hand plays the role of supporting the growth of body tissues. In clinical work, doctors give gauze to the urethral opening for the above-mentioned patients to play an appeal role. However, due to postoperative bleeding at the urethral opening, the gauze is not replaced in time, which will easily lead to the following problems: 1. It is easy to cause the growth of bacteria 2, cause gauze to harden after the blood on the gauze dries, and the patient feels severe pain, 3, is unfavorable for the operation when the nurse carries out the urethral opening disinfection to the patient.

Utility model content

In order to solve the problems in the background technology, the utility model provides a double-capsule multi-cavity urinary catheter.

The concrete technical scheme of the utility model is as follows:

A double-capsule multi-lumen urinary catheter, comprising a urinary catheter, an internally fixed airbag cavity, and an externally fixed airbag cavity; the urinary catheter comprises an internally fixed airbag cavity, an externally fixed airbag cavity, a drainage cavity, and a bladder irrigation cavity; The head end of the urinary catheter is sequentially provided with an internal fixation airbag closer to the head end and an external fixation airbag farther from the head end along its length direction; the internal fixation airbag cavity communicates with the internal fixation airbag; the external fixation airbag cavity It communicates with the external fixation airbag; both the drainage chamber and the middle section of the bladder irrigation chamber are provided with a negative pressure accommodation chamber, and along the liquid flow direction, between the liquid outlet end of the negative pressure accommodation chamber and the drainage chamber, and between the liquid outlet end of the negative pressure accommodation chamber A one-way valve is arranged between the bladder flushing chamber and the bladder.

As a preferred item: the bladder flushing chamber and the drainage chamber are both provided with a double-ended lumen plug at the end of the urinary catheter tail.

As a preferred item: the distance between the external fixation balloon and the internal fixation balloon is between 22cm and 10cm.

As a preferred item: a length scale is marked on the outer wall of the urinary catheter, between the internal fixation air bag cavity and the negative pressure accommodation cavity.

The beneficial technical effect of the utility model is:

It avoids the pollution caused by bladder flushing fluid and drainage backflow, and the design of the negative pressure chamber avoids the time-consuming and laborious process of the doctor’s pressurized bladder flushing. contamination in the process.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Among them: catheter 1, internal fixed balloon 2, external fixed balloon 3, internal fixed balloon cavity 4, external fixed balloon cavity 5, negative pressure chamber 6, one-way valve 7, drainage chamber 8, bladder irrigation chamber 9, double Head lumen plug 10.

detailed description

Below in conjunction with accompanying drawing, the effective mode of the technical scheme that the utility model is taken for solving the above-mentioned technical problem is further explained: in Fig. The tube 1 includes an internal fixation balloon cavity 4, an external fixation balloon cavity 5, a drainage cavity 8 and a bladder irrigation cavity 9; the head end of the urinary catheter 1 is sequentially provided with an internal fixation balloon 2 close to the head end and a distance from the head along its length direction. The external fixation airbag 3 far from the end; the internal fixation airbag chamber 4 communicates with the internal fixation airbag 2; the external fixation airbag chamber 5 communicates with the external fixation airbag 3; the middle section of the drainage chamber 8 and the bladder irrigation chamber 9 is provided with a negative pressure accommodation chamber 6 , along the direction of liquid flow, a one-way valve 7 is provided between the liquid outlet of the negative pressure chamber 6 and the drainage chamber 8, and between the liquid outlet of the negative pressure chamber 6 and the bladder irrigation chamber 9.

In the utility model, the bladder flushing chamber 9 and the drainage chamber 8 are both provided with a double-head lumen plug 10 at the end of the urinary catheter 1 tail.

The distance between the external fixed air bag 3 and the internal fixed air bag 2 in the utility model is between 22-10 cm; length scales are marked on the outer wall of the catheter, between the internal fixed air bag chamber and the negative pressure accommodation chamber.

In the utility model, an inner airbag plays the role of internal fixation, and an outer airbag plays the role of oppressing hemostasis, reverse pulling, and shortening the distance of the urethra. The length of the male urethra is between 16 and 22 cm, so the distance between the external fixation balloon and the internal fixation balloon is between 22 and 10 cm. When injecting water into the external fixation balloon, the cavity of the external fixation balloon moves from far away from the end of the internal fixation balloon to the inside The water injection at the end of the fixed balloon has achieved the function of adjusting the size of the external fixed balloon to adapt to different urethral lengths. In addition, when the liquid in the external fixed balloon is pumped out, it becomes deflated from the near-inner fixed balloon end to the outer fixed balloon end. When recovering from the disease, the effect of reducing or releasing the compression can be achieved by adjusting the size of the external fixation airbag. At the same time, there is a scale marked between the internal fixation air bag cavity and the negative pressure capacity cavity. Doctors can observe the scale not only to understand the length of the catheter insertion, but also to know the pressure given to the urethra by observing the scale on the external fixation air bag cavity. In addition, in clinical work, it often happens that the urinary catheter prolapses due to the spontaneous rupture of the internal fixation balloon cavity or other reasons, resulting in delays in treatment and panic among medical staff and patients. Judging in advance by observing the exposed scale of the urinary catheter Whether the urinary catheter prolapses, so that effective countermeasures can be taken in time.

Since patients undergoing prostate resection or bladder tumor resection require bladder irrigation, this type of catheter is designed as a double-capsule four-lumen catheter. The double-capsule four-lumen urinary catheter is: internal fixed balloon, external fixed balloon, internal fixed balloon cavity, external fixed balloon cavity, drainage cavity and bladder irrigation cavity. Bleeding, the accumulation of blood clots in the bladder leads to poor drainage of the urinary catheter. In clinical work, we often use a syringe to pressurize and aspirate the blood clots to relieve the intravesical pressure and relieve the symptoms of bladder spasm. However, due to the The drainage cavity of the urinary catheter does not match the front end of the syringe (the drainage cavity is relatively thick), which causes sterile saline to leak out of the drainage tube cavity every time the bladder is pressurized and flushed. On the one hand, it causes pollution, and on the other hand, the amount of pressurized flushing is insufficient , moreover cause the patient bed unit to soak, so the utility model has made the following innovations on this basis:

We have added a negative pressure chamber to the catheter, and there is a one-way valve between the negative pressure chamber and the outlet of the bladder irrigation chamber and the outlet of the drainage chamber. Under normal circumstances, normal saline passes through the bladder irrigation chamber. The one-way valve reaches the negative pressure pot and then enters the bladder. The drainage fluid reaches the other half of the negative pressure pot from the bladder and then flows out of the drainage chamber through the one-way valve. When the patient's urinary catheter is blocked, squeeze the negative pressure pot to realize the suction of the syringe to suck out the blood clot in the bladder. The closed bladder irrigation is realized, and the contamination of the syringe in the process of drawing sterile saline is avoided.

We have added a double-head lumen plug at the end of the bladder irrigation cavity and drainage cavity of the catheter. When the double-head plug is fully opened, it is normal function. When the bladder irrigation cavity is plugged with a small head, it can be connected to an infusion set. Realize the function of small-dose bladder irrigation or bladder perfusion. When the continuous bladder irrigation is stopped, the stopper is closed to avoid contamination of the lumen; when the drainage lumen uses a small head plug, a syringe can be connected to achieve negative pressure drainage pot due to insufficient pressure and other reasons. Block cannot be extracted.

Although this manual uses more catheter 1, internal fixed balloon 2, external fixed balloon 3, internal fixed balloon cavity 4, external fixed balloon cavity 5, negative pressure accommodation cavity 6, one-way valve 7, drainage cavity 8, Bladder irrigation cavity 9, double-head lumen plug 10 and other terms, but the possibility of using other terms is not excluded. These terms are only used to describe the essence of the utility model more conveniently, and they are interpreted as any kind of additional limitation and all violate the spirit of the utility model.

It should be understood that the parts not described in detail in this specification belong to the prior art.

It should be understood that the above-mentioned descriptions for the preferred embodiments are relatively detailed, and cannot therefore be considered as limiting the protection scope of the utility model patent. In the case of the scope of protection of the new claims, replacement or deformation can also be made, all of which fall within the protection scope of the utility model, and the scope of protection of the utility model should be based on the appended claims.

Claims (4)

1. a kind of pair of capsule multi-cavity urethral catheter, it is characterised in that：Including catheter（1）；The catheter（1）Including interior fixation balloon Chamber（4）, outer fixation balloon chamber（5）, drainage lumens（8）With bladder irrigation chamber（9）;The catheter（1）Head end is along its length It is disposed with the interior fixation balloon nearer from head end（2）With the outer fixation balloon from head end farther out（3）；The interior fixation balloon Chamber（4）With interior fixation balloon（2）Communicate；The outer fixation balloon chamber（5）With outer fixation balloon（3）Communicate；The drainage lumens（8） With bladder irrigation chamber（9）Stage casing is provided with negative pressure accommodating chamber（6）, the negative pressure accommodating chamber（6）Outlet end and drainage lumens（8）It Between, negative pressure accommodating chamber（6）Outlet end and bladder irrigation chamber（9）Between be provided with one-way valve (7).

2. double capsule multi-cavity urethral catheters as claimed in claim 1, it is characterised in that：The bladder irrigation chamber（9）And drainage lumens（8） Positioned at catheter（1）The end of tail end is provided with double end tube chamber plug (10).

3. double capsule multi-cavity urethral catheters as claimed in claim 1, it is characterised in that：The outer fixation balloon（3）With interior fixed gas Capsule（2）The distance between 22~10cm.

4. double capsule multi-cavity urethral catheters as claimed in claim 1, it is characterised in that：The catheter（1）On outer wall, interior fixed gas Blister cavities（5）To negative pressure accommodating chamber（6）Between indicate length scale.