Balloon type left atrium piezometric tube

Abstract

The utility model relates to a balloon type left atrium piezometric tube, which comprises a piezometric tube main body, the piezometric tube main body is a Y-shaped pipeline mainly formed by a main cavity piezometric tube, an auxiliary cavity balloon tube and an imbedding catheter, and the inner cavity of the main cavity piezometric tube and the inner cavity of the auxiliary cavity balloon tube are not communicated with each other. An eccentric balloon communicated with an inner cavity of the auxiliary cavity balloon tube is arranged at the front end of the auxiliary cavity balloon tube, and a sharp soft head is arranged at the front end of the imbedding catheter. Compared with a traditional left atrium piezometric tube, the balloon type left atrium piezometric tube is easier to operate, not prone to being separated from the left atrium, capable of stably and continuously measuring pressure and capable of being conveniently and rapidly pulled out.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, especially involve a balloon formula left atrium pressure measuring tube. BACKGROUND

[0002] The left atrium cannot be reached directly through the body surface puncture, but the internal pressure is very important for guiding the treatment of the patient. The commonly used measurement method in the clinic is to place a pressure measuring tube into the right atrium through the internal jugular vein puncture before the operation, open the right atrium during the operation, puncture the atrial septum, place the tip of the tube into the left atrium, so that the tube can continuously monitor the left atrial pressure. When the patient is stable after the operation and does not need to be continuously monitored, the pressure measuring tube is gradually withdrawn along the left atrium, the atrial septum, the right atrium and the superior vena cava, and then completely removed. The disadvantage of this method is that in order to facilitate the removal of the tube after the chest is closed, the tube cannot be fixed on the atrial septum, which leads to the tube being easily slipped out of the left atrium and returned to the right atrium, resulting in failure of pressure measurement, and there is no remedy. Many factors in the clinical operation of the doctor during the operation, such as moving the heart, closing the chest, manually inflating the lung, moving the patient and coughing after the operation, etc. can easily cause the pressure measuring tube to be easily pulled out of the left atrium. The patent document with the authorization announcement number CN 201755226 U discloses a left and right atrium combined pressure measuring catheter, which comprises a catheter connector, at least one extension tube connected to one end of the catheter connector, an injection cap connected to the catheter connector, a liquid stopping clamp sleeved on the extension tube, a connecting seat, a tube body containing a tip, a sheath sleeved on the outside of the tube body, the other end of the extension tube is connected to the tube body through the connecting seat and is communicated, and the pressure measuring microcatheter and the supporting steel wire are further included, the pressure measuring microcatheter penetrates through the extension tube and the tube body and extends out of the tip of the tube body, and the supporting steel wire is arranged in the pressure measuring microcatheter. The supporting steel wire can support the pressure measuring microcatheter to enter the left atrium, the left atrial pressure can be conveniently measured through the pressure measuring microcatheter, the use of the floating catheter is avoided, the pressure measuring microcatheter can be pulled out when the continuous monitoring of the left atrial pressure is not needed, the catheter does not need to be moved, the operation difficulty is reduced, and the complications and accidental dangers of the patient are reduced.

[0003] There is an urgent need to develop a left atrial pressure measuring tube for preventing the tube from being pulled out of the right atrium and continuously and stably monitoring the blood pressure in the left atrium of the patient during the perioperative period. UTILITY MODEL CONTENT

[0004] The utility model is to overcome the defects in the prior art, provide a balloon formula left atrium pressure measuring tube, place the tip of the tube into the left atrium, make the filling balloon clamp the tube, prevent the tube from being pulled out of the right atrium, and continuously and stably monitor the blood pressure in the left atrium, and the tube can be smoothly removed after the balloon is evacuated.

[0005] The utility model discloses a balloon formula left atrium pressure measuring tube, including pressure measuring tube main part, the pressure measuring tube main part mainly comprises the main cavity pressure measuring tube, auxiliary cavity balloon pipe and the implantation catheter and constitutes the appearance " Y " character pipe line, the main cavity pressure measuring tube inner chamber and auxiliary cavity balloon pipe inner chamber do not communicate with each other, the auxiliary cavity balloon pipe front end is equipped with the eccentric balloon that communicates with its inner chamber, the implantation catheter's front end head is equipped with the pointed soft head.

[0006] Further, the pressure measuring tube main part full length 40cm, implantation catheter length 32cm, main cavity pressure measuring tube length 6cm, implantation catheter passes through bifurcated special-shaped card and main cavity pressure measuring tube, auxiliary cavity balloon pipe connection constitutes whole " Y " character pipe line, the bifurcated special-shaped card length 2cm.

[0007] Further, the main cavity pressure measuring tube inner chamber cross section shape is round, and the main cavity pressure measuring tube tail end is equipped with the spiral interface.

[0008] Further, the auxiliary cavity balloon pipe inner chamber cross section shape is crescent, and the eccentric balloon of auxiliary cavity balloon pipe front end fills air or liquid, and its containing capacity is 1.5ml.

[0009] Further, the auxiliary cavity balloon pipe tail part is equipped with the regulating switch interface.

[0010] Beneficial effect: compared with prior art, compared with the traditional left atrium pressure measuring tube, the balloon formula left atrium pressure measuring tube is more easy to operate, and it is difficult to take out left atrium, can stable continuous pressure measurement, and can be convenient and fast to remove. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structural schematic diagram of the utility model;

[0012] Figure 2 It is the state diagram of pressure measuring tube insertion sheath pipe of the utility model;

[0013] Figure 3 It is the cross section view of main cavity pressure measuring tube inner chamber and auxiliary cavity balloon pipe inner chamber:

[0014] Figure 4 It is the schematic diagram of pressure measuring tube in the body placement completion.

[0015] In the drawing: 1, pressure measuring tube main part, 1-1, main cavity pressure measuring tube, 1-1-1, spiral interface, 1-2, auxiliary cavity balloon pipe, 1-2-1, regulating switch interface, 1-3, implantation catheter, 2, eccentric balloon, 3, pointed soft head, 4, bifurcated special-shaped card, 5, self-tightening sheath pipe. DETAILED DESCRIPTION

[0016] The following detailed description of the specific embodiments according to the present application is provided in connection with the preferred embodiments. As shown in the drawings, the present embodiment provides a balloon left atrial pressure measuring tube, which comprises a pressure measuring tube body 1. The pressure measuring tube body is mainly composed of a main cavity pressure measuring tube 1-1, a sub-cavity balloon tube 1-2 and an implanted catheter 1-3, and has a "Y" shaped pipeline. The inner cavities of the main cavity pressure measuring tube and the sub-cavity balloon tube are not communicated with each other. The front end of the sub-cavity balloon tube is provided with an eccentric balloon 2 which is communicated with the inner cavity of the sub-cavity balloon tube. The front end of the implanted catheter is provided with a pointed soft head 3.

[0017] The preferred scheme of the present embodiment is that the total length of the pressure measuring tube body is 40 cm, the length of the implanted catheter is 32 cm, the length of the main cavity pressure measuring tube is 6 cm, the implanted catheter is connected with the main cavity pressure measuring tube and the sub-cavity balloon tube through a bifurcated special-shaped clamp 4 to form an integral "Y" shaped pipeline, and the length of the bifurcated special-shaped clamp is 2 cm. The outer circular surface of the implanted catheter of the present embodiment is provided with pipeline length marks.

[0018] The preferred scheme of the present embodiment is that the cross-sectional shape of the inner cavity of the main cavity pressure measuring tube is circular, and the tail end of the main cavity pressure measuring tube is provided with a screw interface 1-1-1. The screw interface of the tail end of the main cavity pressure measuring tube is connected with a pressure transducer, and the left atrial pressure value can be read.

[0019] The preferred scheme of the present embodiment is that the cross-sectional shape of the inner cavity of the sub-cavity balloon tube is crescent-shaped, and the eccentric balloon at the front end of the sub-cavity balloon tube is filled with air or liquid, and the containing capacity is 1.5 ml.

[0020] The preferred scheme of the present embodiment is that the tail end of the sub-cavity balloon tube is provided with an adjusting switch interface 1-2-1. The tail end of the sub-cavity balloon tube is connected with a syringe, and water or gas can be injected into the sub-cavity balloon. After the balloon is filled, the switch can be closed to avoid liquid / gas leakage.

[0021] Working process

[0022] Implantation

[0023] The patient lies flat, and a self-tightening sheath 5 is implanted through the internal jugular vein. After the balloon left atrial pressure measuring tube is sent about 10 cm through the sheath, the balloon is inflated by 1.5 ml, the balloon left atrial pressure measuring tube is continuously sent to 30 cm, the sheath and the pressure measuring tube are locked, and the balloon is deflated.

[0024] During the operation, the right atrium is opened during the extracorporeal circulation, the balloon left atrial pressure measuring tube is found, the atrial septum is punctured, the pipeline tip is placed in the left atrium about 3 cm on the other side of the atrial septum, 1.5 ml of normal saline is injected into the balloon, and whether the balloon is firmly clamped on the atrial septum is tested from the right atrium side. The self-tightening sheath is loosened, and the balloon left atrial pressure measuring tube is slowly pulled out to the right atrial catheter without redundancy. The sheath and the pressure measuring tube are locked again, and the implantation of the pressure measuring tube is completed.

[0025] Pulling out

[0026] The balloon is drained of saline and the left atrial tube is slowly removed. The self-securing sheath can be left in place for intravenous access or removed with the tube.

[0027] The features of this embodiment are:

[0028] 1. The balloon left atrial pressure tube tip can be filled with gas or liquid;

[0029] 2. The balloon left atrial pressure tube tip can be securely clamped to the atrial septum after being filled, so that the catheter is not easily removed;

[0030] 3. The balloon left atrial pressure tube can be self-clamped, so it does not need surgical sutures for reinforcement, and therefore there is no difficulty in removing it;

[0031] 4. When the balloon left atrial pressure tube is placed in the right atrium, the balloon can be inflated with gas to help the catheter float and point to the tricuspid valve and not wander to other locations;

[0032] 5. After the balloon left atrial pressure tube is placed in the left atrium, it can be filled with liquid to facilitate ultrasonic detection.

[0033] The above reference embodiment describes a balloon left atrial pressure tube in detail, which is illustrative rather than limiting, and a number of embodiments can be listed within the defined range, so changes and modifications that do not deviate from the overall concept of the present utility model should be within the scope of protection of the present utility model.

Claims

1. A balloon tipped left atrial pressure catheter characterized by: The pressure measuring tube body is mainly composed of a main cavity pressure measuring tube, a secondary cavity balloon tube and an implantation catheter, and has a "Y" shaped pipeline, the inner cavities of the main cavity pressure measuring tube and the secondary cavity balloon tube are not communicated, the cross section shape of the inner cavity of the secondary cavity balloon tube is crescent, the front end of the secondary cavity balloon tube is provided with an eccentric balloon communicated with the inner cavity, the front end of the implantation catheter is provided with a pointed soft head, the total length of the pressure measuring tube body is 40 cm, the length of the implantation catheter is 6 cm, the implantation catheter is connected with the main cavity pressure measuring tube and the secondary cavity balloon tube through a bifurcated special-shaped clamp to form a whole "Y" shaped pipeline, and the length of the bifurcated special-shaped clamp is 2 cm.

2. The balloon tipped left atrial pressure catheter of claim 1, wherein: The cross section shape of the inner cavity of the main cavity pressure measuring tube is circular, and the tail end of the main cavity pressure measuring tube is provided with a screw joint.

3. The balloon tipped left atrial pressure catheter of claim 1 wherein: The eccentric balloon at the front end of the secondary cavity balloon tube is filled with air or liquid, and the containing capacity is 1.5 ml.

4. The balloon tipped left atrial pressure catheter of claim 1 or 3, wherein: The tail part of the secondary cavity balloon tube is provided with an adjusting switch joint.

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