Balloon catheter
By designing a balloon catheter with multiple sets of inflatable balloons and covering balloons, the problem of uneven expansion of existing balloon catheters has been solved, achieving a dual improvement in safety and operability.
Patent Information
- Application Number
- CN202422801353.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing balloon catheters are not easy to expand evenly during use, and can easily cause single-point compression of blood vessels, affecting the safety of treatment.
A balloon catheter with multiple sets of inflatable balloons and a covering balloon was designed. The balloons are simultaneously inflated by an infusion or gas delivery device to achieve uniform expansion, avoid excessive local pressure, and adopt a double-layer balloon structure to improve safety.
It achieves uniform expansion of the balloon catheter, reduces local pressure on blood vessels, improves operational safety, and prevents liquid or gas from entering the body in the event of balloon rupture, thus enhancing safety during use.
Smart Images
Figure CN223586402U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to medical instrument technical field, concretely is a kind of balloon catheter. BACKGROUND
[0002] Balloon catheter is a kind of interventional medical instrument, is disposable, is simply dilated occlusion site blood vessel, make its small inner diameter recover to normal blood vessel inner diameter or a little smaller than normal, but certainly will be better than before operation, the balloon catheter of prior art is mostly made of silicone material.
[0003] The existing balloon catheter is inconvenient to expand uniformly to the outer ring when being used, and the balloon expansion can easily cause large extrusion to a single point of blood vessel, thereby affecting the safety of treatment operation, which is not conducive to the use of people, therefore, the technical personnel in the art provide a kind of balloon catheter to solve the problems raised in the above background technology. UTILITARIAN CONTENT
[0004] The utility model aims at providing a kind of balloon catheter to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of balloon catheter, including catheter body, the one end of the catheter body is equipped with first connecting end, the outside of the catheter body is equipped with multiple groups of multiple groups of filling balloon along its axial direction arrangement, the outside of the catheter body is equipped with together with the covering balloon wrapped in the outside of multiple groups of filling balloon, the outside of the catheter body is communicated with second connecting end, the second connecting end is communicated with multiple groups of filling balloon by the conveying piece located in the inside of catheter body.
[0006] Preferably, the conveying piece includes a ring pipe integrally formed in the inside of the catheter body, the ring pipe is communicated with the second connecting end, the inner wall of the catheter body is integrally formed with a conveying pipe communicated with the ring pipe, and a plurality of through holes communicated with the conveying pipe and the filling balloon are formed in the catheter body.
[0007] Preferably, the inside of the catheter body is provided with two groups of conveying pipes which are centrally symmetrical around the central axis.
[0008] Preferably, the other end of the catheter body is provided with a first connecting end, and a metal end is glued to the first connecting end, and the front end of the metal end is semispherical.
[0009] Preferably, the outside of the catheter body is provided with two groups of developing rings located in the inside of the covering balloon, and the two groups of developing rings are respectively located at the front end and the rear end of the multiple groups of filling balloons.
[0010] Preferably, the covering balloon and the filling balloon are made of natural rubber or silicone material.
[0011] Preferably, the inflation balloon has 4-8.
[0012] Preferably, the inflated balloon cavity section is trapezoidal, and the inflated inflation balloon cavity section is semicircular.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] 1、The utility model discloses a catheter, which comprises a catheter body, a plurality of inflation balloons arranged along the axial direction of the catheter body, a covering balloon wrapped outside the plurality of inflation balloons, a first connecting end arranged at one end of the catheter body, a second connecting end arranged outside the catheter body, a ring pipe connected to the second connecting end, a conveying pipe connected to the ring pipe, and a metal end arranged at the other end of the catheter body. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic view of the overall structure of the utility model.
[0016] Figure 2 It is a sectional view of A-A in the utility model. Figure 1
[0017] In the figure: 1, catheter body; 2, first connecting end; 3, inflation balloon; 4, covering balloon; 5, second connecting end; 6, ring pipe; 7, conveying pipe; 8, through hole; 9, metal end; 10, developing ring. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0019] Please refer to Figures 1-2 In the embodiments of the utility model, a balloon catheter comprises a catheter body 1, a first connecting end 2 arranged at one end of the catheter body 1, a plurality of inflation balloons 3 arranged along the axial direction of the catheter body 1 outside the catheter body 1, a covering balloon 4 wrapped outside the plurality of inflation balloons 3, a second connecting end 5 arranged outside the catheter body 1, and a conveying member arranged inside the catheter body 1 and connected to the plurality of inflation balloons 3.
[0020] When the balloon catheter is lifted into the patient's body for use, the central inner cavity of the catheter body 1 can be used for the movement of the guide wire, and the liquid or gas can be delivered through the second connecting end 5 and the delivery member by an external liquid or gas delivery device, and the liquid or gas can be simultaneously delivered to the interiors of the multiple sets of inflated balloons 3, and the inflated balloons 3 can be expanded synchronously to gradually support the covering balloon 4, and the multiple sets of small inflated balloons 3 can gradually support the external covering balloon 4, which can effectively avoid excessive local pressure on the blood vessel caused by the inflation of the balloon on the catheter.
[0021] Specifically, the delivery member comprises a ring tube 6 integrally formed inside the catheter body 1, the ring tube 6 is in communication with the second connecting end 5, the inner wall of the catheter body 1 is integrally formed with a delivery tube 7 in communication with the ring tube 6, a plurality of through holes 8 in communication with the delivery tube 7 and the inflated balloon 3 are formed on the catheter body 1, and the liquid or gas can be delivered to the interior of the inflated balloon 3 through the ring tube 6 and the delivery tube 7, and further, the catheter body 1 is provided with two sets of delivery tubes 7 that are centrally symmetrical about the central axis, which can further improve the uniformity of the inflation and expansion of the inflated balloon 3.
[0022] The other end of the catheter body 1 is provided with the first connecting end 2 to which a metal end 9 is glued, the front end of the metal end 9 is semispherical, which can conveniently and smoothly deliver the balloon catheter into the patient's body, and the outer part of the catheter body 1 is provided with two sets of developing rings 10 located inside the covering balloon 4, the two sets of developing rings 10 are respectively located at the front end and the rear end of the multiple sets of inflated balloons 3, which can facilitate the medical staff to observe the actual depth of the balloon catheter during the operation.
[0023] The covering balloon 4 and the inflated balloon 3 are both made of natural rubber or silicone material, the material has certain toughness to provide the balloon with the functions of contraction and expansion, and the balloon is provided with a double layer to avoid the liquid or gas in the balloon from entering the human body when the balloon is damaged, thereby improving the safety of the device in actual use, the inflated balloon 3 has 4-8, and the size and the number of the inflated balloon 3 can be adjusted according to actual needs, the inner cavity of the inflated covering balloon 4 has a trapezoidal cross section, the inner cavity of the inflated inflated balloon 3 has a semicircular cross section, the multiple sets of inflated balloons 3 support the covering balloon 4, the volume of the multiple sets of inflated balloons 3 relative to the covering balloon 4 is small, which can conveniently support the covering balloon 4 quickly during the actual operation of the device, and the components can be produced and assembled by gluing or integrally forming.
[0024] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. A balloon catheter comprising a catheter body (1), one end of which is provided with a first connection end (2), characterized in that: The outer part of the catheter body (1) is provided with a plurality of groups of inflation balloons (3) arranged along the axial direction of the catheter body (1), and the outer part of the catheter body (1) is provided with a sheath balloon (4) wrapped outside the plurality of groups of inflation balloons (3), and the outer part of the catheter body (1) is communicated with a second connecting end (5), and the second connecting end (5) is communicated with the plurality of groups of inflation balloons (3) through a conveying member located inside the catheter body (1).
2. The balloon catheter of claim 1, wherein: The conveying member comprises a ring tube (6) integrally formed inside the catheter body (1), the ring tube (6) is communicated with the second connecting end (5), and the inner wall of the catheter body (1) is integrally formed with a conveying pipe (7) communicated with the ring tube (6), and a plurality of through holes (8) are formed on the catheter body (1) to communicate the conveying pipe (7) and the inflation balloon (3).
3. The balloon catheter of claim 2, wherein: The inner part of the catheter body (1) is provided with two groups of conveying pipes (7) which are centrally symmetric around the central axis.
4. The balloon catheter of claim 1, wherein: The other end of the catheter body (1) is provided with a first connecting end (2) which is glued with a metal end head (9), and the front end of the metal end head (9) is hemispherical.
5. The balloon catheter of claim 1, wherein: The outer part of the catheter body (1) is provided with two groups of developing rings (10) located inside the sheath balloon (4), and the two groups of developing rings (10) are respectively located at the front end and the rear end of the plurality of groups of inflation balloons (3).
6. The balloon catheter of claim 1, wherein: The sheath balloon (4) and the inflation balloon (3) are made of natural rubber or silicone material.
7. The balloon catheter of claim 1, wherein: The inflation balloon (3) has 4-8.
8. The balloon catheter of claim 1, wherein: The inner cavity of the inflated sheath balloon (4) is trapezoidal in cross section, and the inner cavity of the inflated inflation balloon (3) is semicircular in cross section.