Perfusion catheter with balloon

Abstract

The utility model relates to a perfusion catheter with a balloon, which belongs to the technical field of medical catheters and comprises a catheter seat, developing marks and a perfusion section, the catheter seat is provided with a medicine injection port and a balloon plugging gas injection port, and the developing marks comprise a first developing mark, a second developing mark and a third developing mark. The catheter seat is connected with the perfusion section through the first catheter, the first developing mark and the second developing mark are distributed at the left end and the right end of the perfusion section, a blocking balloon is arranged at the end, away from the catheter seat, of the perfusion section, and the end, away from the perfusion section, of the blocking balloon is communicated with the tip end of the catheter through the second catheter. And the third developing mark is arranged in the second catheter. The three-blade valve structure can replace a closed guide wire, so that the operation process is simplified, and the operation convenience is improved; the blocking balloon prevents the medicine and the dissolved thrombus from entering other blood vessels, so that the risk to healthy blood vessels is reduced; by arranging a developing mark, the catheter perfusion section can accurately reach the diseased region.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical catheter field especially, it is a kind of perfusion catheter with balloon. BACKGROUND

[0002] Perfusion catheter is key medical equipment, is crucial in thrombolysis operation, generally by delivery catheter and occlusion guide wire composition. When using, doctor first uses guide wire to establish access, then catheter is sent into body. After that, the guide wire is withdrawn, and the occlusion guide wire is sent in to close the drug chamber. When the catheter reaches the thrombus position, the doctor can perform thrombolysis. This process is complex, and requires skilled doctors with rich experience.

[0003] In traditional thrombolysis operation, drugs often flow into surrounding healthy blood vessels through the tiny gap between the catheter and the blood vessel, which undoubtedly increases the risk of bleeding. In addition, small thrombus fragments after dissolution may also flow into other blood vessels with blood, causing secondary occlusion. This not only increases the patient's pain, but also may further threaten the patient's health.

[0004] In view of these problems existing in the prior art perfusion catheter, it is urgent to develop a new type of perfusion catheter to solve these problems. The new type of perfusion catheter should have higher accuracy and safety to reduce the risk of bleeding and the possibility of secondary occlusion during operation; At the same time, it should simplify the operation process and improve the convenience of operation, effectively deliver drugs directly to the thrombus site, and minimize the impact on surrounding healthy blood vessels. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a perfusion catheter with balloon to solve the problems raised in the background art.

[0006] In order to achieve the above-mentioned utility model purposes, the utility model provides a perfusion catheter with balloon, which comprises a catheter seat, a developing mark and a perfusion section, the catheter seat is provided with a drug injection port and a blocking balloon gas injection port, the developing mark comprises a first developing mark, a second developing mark and a third developing mark, the catheter seat is connected with the perfusion section through a first catheter, the first developing mark and the second developing mark are distributed on the left and right ends of the perfusion section, the perfusion section is provided with a blocking balloon at one end away from the catheter seat, the end of the blocking balloon away from the perfusion section is communicated with a catheter tip through a second catheter, and the third developing mark is arranged in the second catheter.

[0007] Further, the inside of the perfusion section comprises a blocking balloon filling cavity communicating the blocking balloon gas injection port with the blocking balloon, a side seam for spraying drugs to thrombus, and a thrombolysis cavity.

[0008] Further, the catheter seat is in communication with the first catheter through a stress buffer tube.

[0009] Further, the catheter tip comprises a three-leaf valve structure.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The three-leaf valve structure can replace the role of the closed guide wire, simplifies the operation process and improves the convenience of operation.

[0012] The blocking balloon prevents the drug and dissolved thrombus from entering other blood vessels, reducing the risk to healthy blood vessels.

[0013] By setting the developing mark, the catheter perfusion section can accurately reach the lesion site. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of the embodiment of the utility model;

[0015] Figure 2 It is a partial section enlarged structure schematic view of the perfusion section 6;

[0016] Figure 3 It is Figure 2 It is a section structure schematic view of the AA line.

[0017] Figure 4 It is a schematic view of the thrombolytic catheter in actual application;

[0018] Figure 5 It is a structure schematic view of the tip three-leaf valve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model more clear, the technical scheme in the embodiment of the utility model will be described clearly and completely in combination with the drawings of the utility model, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. The embodiment of the utility model will be described in combination with the drawings.

[0020] As Figures 1-3As shown, a perfusion catheter with a balloon includes a catheter seat 3, a developing mark 5 and a perfusion section 6, the catheter seat 3 is provided with a drug injection port 1 and a blocking balloon gas injection port 2, the developing mark 5 includes a first developing mark 51, a second developing mark 52 and a third developing mark 53, the developing mark 5 can be made of platinum ring, the catheter seat 3 is connected with the perfusion section 6 through a first catheter 12, the first developing mark 51 and the second developing mark 52 are distributed and arranged at the left and right ends of the perfusion section 6, the end of the perfusion section 6 away from the catheter seat 3 is provided with a blocking balloon 8, the end of the blocking balloon 8 away from the perfusion section 6 is communicated with a catheter tip 7 through a second catheter 13, and the third developing mark 53 is arranged in the second catheter 13;

[0021] The catheter seat 3 is used for connecting the drug injection port 1 and the blocking balloon gas injection port 2, the drug injection port 1 is a 6% luer joint, is connected with a continuous drug injection device, is used for injecting drugs into a thrombolytic cavity, and the blocking balloon gas injection port 2 is a 6% luer joint, is connected with a gas pump device, and is used for injecting gas into a blocking balloon inflation cavity, the first developing mark 51, the second developing mark 52 and the third developing mark 53 are used for developing, so that a doctor can clearly identify the position of the catheter during surgery, thereby ensuring the accuracy of the surgery, the perfusion section 6 is between the first developing mark 51 and the second developing mark 52, is provided with a plurality of thrombolytic liquid outlet side slits, and the blocking balloon 8 is arranged between the second developing mark 52 and the third developing mark 53; after inflation, the distal blood vessel is blocked to prevent drugs and dissolved thrombus from entering other blood vessels;

[0022] The inside of the perfusion section 6 includes a blocking balloon inflation cavity 9 connected with the blocking balloon gas injection port 2 and the blocking balloon 8, a side slit 61 for spraying drugs to the thrombus and a thrombolytic cavity 10, the side slit 61 is arranged on the side wall of the pipe body of the perfusion section 6 and is used for spraying drugs to the thrombus, and the thrombolytic cavity 10 is the main cavity of the catheter and penetrates through the whole catheter;

[0023] The catheter seat 3 is communicated with the first catheter 12 through a stress buffer tube 4, the stress buffer tube 4 is arranged at the connection position of the catheter seat 3 and the first catheter 12 and is used for protecting the first catheter 12 to avoid being contaminated or damaged in the use process;

[0024] The catheter tip 7 includes a three-leaf valve structure 71, the catheter tip 7 is provided with the three-leaf valve structure, can guide a guide wire during surgery; after the guide wire is withdrawn, the three-leaf valve structure 71 injects drugs into the cavity and can prevent the drugs from passing through the catheter tip 7;

[0025] The working principle of the perfusion catheter is as follows:

[0026] 1. The catheter is designed as a double-cavity structure, including a cavity for inflating a blocking balloon and a cavity for thrombolysis.

[0027] 2, three-leaf valve structure 71 can be guided by the guide wire, while being able to control the liquid flow, prevent the injected drug from being sprayed from the catheter tip, so that the drug can be sprayed to the thrombus area in the perfusion section 6.

[0028] 3, the distal tube body perfusion section 6 is evenly distributed with side slits, which is beneficial to the uniform spraying of the medicament, thereby improving the perfusion efficiency and ensuring that the drug can fully act on the lesion site.

[0029] 4, the perfusion section 6 and the balloon are designed with developing marks at both ends, which ensures that they can accurately reach the lesion site.

[0030] 5, the occlusion balloon 8 can occlude the distal blood vessel after inflation, prevent the thrombus from flowing to the distal end and causing secondary blockage, and prevent the drug and dissolved thrombus from entering other blood vessels, thereby reducing the risk to healthy blood vessels.

[0031] The steps for use are as follows:

[0032] 1. The perfusion catheter is sent into the venous blood vessel 11 by the guide wire, and the guide wire is withdrawn when the perfusion section reaches the thrombus.

[0033] 2. Then, the occlusion balloon inflation cavity 9 is injected with gas through the occlusion balloon gas injection port 2, so that the occlusion balloon 8 is inflated and the blood flow is occluded.

[0034] 3. Then, the thrombolytic agent is injected into the drug injection port 1, and flows into the thrombus position through the thrombolysis cavity 10 and the side slit 61, and fully contacts and dissolves the thrombus.

[0035] The three-leaf valve structure 71 can replace the role of the closed guide wire, which simplifies the surgical procedure and improves the convenience of operation.

[0036] The occlusion balloon 8 prevents the drug and dissolved thrombus from entering other blood vessels, thereby reducing the risk to healthy blood vessels.

[0037] The first developing mark 51, the second developing mark 52 and the third developing mark 53 are provided, which ensures that the catheter perfusion 6 can accurately reach the lesion site.

[0038] The technical scheme of the utility model is described above in combination with specific embodiments, but it should be noted that the above description is only for explaining the scheme of the utility model, and cannot be interpreted as a specific limitation on the protection scope of the utility model. Based on the above explanation, those skilled in the art can think of other specific embodiments or equivalent replacements of the utility model without creative labor, which will fall within the protection scope of the utility model.

Claims

1. A perfusion balloon catheter, characterized by, The catheter includes a catheter seat (3), a developing mark (5) and a perfusion section (6), the catheter seat (3) is provided with a drug injection port (1) and a blocking balloon gas injection port (2), the developing mark (5) includes a first developing mark (51), a second developing mark (52) and a third developing mark (53), the catheter seat (3) is connected with the perfusion section (6) through a first catheter (12), the first developing mark (51) and the second developing mark (52) are distributed and arranged at the left and right ends of the perfusion section (6), one end of the perfusion section (6) away from the catheter seat (3) is provided with a blocking balloon (8), one end of the blocking balloon (8) away from the perfusion section (6) is communicated with a catheter tip (7) through a second catheter (13), and the third developing mark (53) is arranged in the second catheter (13).

2. The balloon perfusion catheter of claim 1, wherein, The inside of the perfusion section (6) includes a blocking balloon filling cavity (9) communicated with the blocking balloon gas injection port (2) and the blocking balloon (8), a side seam (61) for spraying drugs to a thrombus and a thrombolytic cavity (10).

3. The balloon perfusion catheter of claim 1, wherein, The catheter seat (3) and the first catheter (12) are communicated through a stress buffer tube (4).

4. The balloon perfusion catheter of claim 1, wherein, The catheter tip (7) includes a three-leaf valve structure (71).

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