Balloon type hemostasis valve

Abstract

The balloon type hemostasis valve comprises a balloon, an outer tube, an end cover and a plugging rubber valve, the outer tube is a hollow tube made of hard materials, the balloon is arranged in the outer tube, the outer ring faces of the two ends of the balloon are fixedly installed on the inner wall of the outer tube, and medium connecting holes are fixedly formed in the outer wall of the outer tube; the medium connecting hole is fixedly connected with a medium pipeline, external threads are fixedly arranged on the outer ring faces of the two ends of the outer pipe, internal threads matched with the external threads of the outer pipe are arranged on the end covers, the end covers and the outer pipe are mutually locked and connected, the plugging rubber valves are clamped at openings in the two ends of the outer pipe, and the plugging rubber valves are locked and fixed to the two ends of the outer pipe through the end covers. The medium is injected between the outer tube and the balloon through the medium pipeline, the balloon deforms through the injection pressure of the medium, sealing between the balloon and the interventional instrument is achieved through deformation of the balloon, the structure is simple, and use is convenient.

Description

Technical Field

[0001] The invention relates to the field of medical devices, and in particular to a balloon-type hemostatic valve. Background Art

[0002] Balloon hemostatic valve plays an important role in the medical field, especially in interventional surgery. Balloon hemostatic valve is a medical device that achieves hemostasis function through the expansion and contraction of a balloon.

[0003] However, the existing balloon hemostatic valve cannot achieve a complete sealing effect when covering and sealing the interventional instrument, so that the hemostatic effect of the interventional surgery cannot reach the expected level. Summary of the invention

[0004] The main purpose of the present invention is to provide a balloon-type hemostatic valve.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A balloon-type hemostatic valve comprises a balloon, an outer tube, an end cover and a sealing rubber valve. The outer tube is a hollow tube made of a hard material, and the balloon is also tubular. The balloon is arranged in the outer tube, and the outer annular surfaces at both ends of the balloon are fixedly mounted on the inner wall of the outer tube. A medium connecting hole is fixedly provided on the outer wall of the outer tube, and a medium pipeline is fixedly connected to the medium connecting hole. External threads are fixedly provided on the outer annular surfaces at both ends of the outer tube, and the end cover is provided with an internal thread matching the external thread of the outer tube. The end cover and the outer tube are locked and connected to each other, and the sealing rubber valve is clamped at the openings at both ends of the outer tube, and the end cover locks the sealing rubber valve to both ends of the outer tube.

[0007] Furthermore, the balloon includes a balloon body and a support member, and support members are provided at both ends of the balloon body, and the support member is integrally formed with the balloon body.

[0008] Furthermore, the balloon body is a soft tube made of polyethylene or thermoplastic polyurethane elastomer.

[0009] Furthermore, the support member is an annular structure made of a hard material, and the inner diameter of the support member is the same as that of the balloon body.

[0010] Furthermore, the sealing rubber valve is of an inwardly concave structure, comprising a valve body base and a hemispherical valve cover. The valve body base is of an annular structure, a hemispherical valve cover is fixedly provided on one side of the valve body base, and an inlet is fixedly opened on the hemispherical valve cover.

[0011] Furthermore, the hemispherical valve cover is made of a soft material, and the valve body base is made of a hard material.

[0012] Furthermore, a plurality of triangular reinforcing ribs made of soft material are arranged in the inner concave surface of the hemispherical valve cover.

[0013] Furthermore, one end of the medium pipeline is fixedly connected to a medium introduction device, and the medium introduction device introduces a pressurized medium between the balloon and the outer tube.

[0014] Furthermore, the pressurized medium includes one of a pressurized liquid and a pressurized gas.

[0015] Furthermore, an introduction guide is provided at the introduction port of the hemispherical valve cover convex surface, a reinforcing rib is fixedly provided on the outer ring surface of one end of the introduction guide away from the introduction port, and a separation groove corresponding to the introduction port is fixedly opened on the introduction guide.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention injects liquid or gas from the interface, and the balloon is a compliant balloon, so the inner diameter of the balloon will become smaller, and the catheter inserted in the middle part can be locked, and blood will not leak out. After the liquid is continuously injected, the balloon continues to expand and deform, and part of the balloon will be deformed and squeezed toward both ends. However, the concave design of the sealing rubber valves at the left and right ends can generate an interaction force to make the sealing rubber valves seal more tightly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a front cross-sectional structural diagram of the present invention;

[0020] Figure 3 A three-dimensional diagram of the sealing rubber valve of the present invention;

[0021] Figure 4 A three-dimensional view of the sealing rubber valve of the present invention from another angle;

[0022] Figure 5 It is a three-dimensional schematic diagram of the sealing rubber valve of Example 3 of the present invention.

[0023] Reference numerals

[0024] 2. Outer tube; 3. End cover; 4. Sealing rubber valve; 5. Medium pipeline; 11. Balloon body; 12. Support member; 41. Valve body base; 42. Hemispherical valve cover; 43. Inlet; 44. Triangular reinforcement rib; 45. Inlet guide; 46. Reinforcement rib; 47. Separation groove. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] Example 1

[0027] See also Figure 1-4 As shown, a balloon-type hemostatic valve comprises a balloon, an outer tube 2, an end cap 3 and a blocking rubber valve 4, wherein the outer tube 2 is a hollow tube made of a hard material, the balloon is also tubular, the balloon comprises a balloon body 11 and a support member 12, the two ends of the balloon body 11 are provided with support members 12, the support member 12 and the balloon body 11 are integrally formed, the balloon is arranged in the outer tube 2, and the outer annular surfaces at the two ends of the balloon are fixedly mounted on the inner wall of the outer tube 2, that is, the support members 12 at the two ends of the balloon are fixedly sealed and connected with the inner wall of the outer tube 2, and the balloon body 11 is made of polyethylene or thermoplastic polyurethane elastic material. The outer tube 2 is a soft tube made of a flexible body, the thickness of the balloon body 11 is 0.002-0.008mm, and the ultra-thin and flexible balloon body 11 is convenient for the balloon body 11 to wrap the interventional device to form a sealing effect, and a medium connection hole is fixedly opened on the outer wall of the outer tube 2, and the medium connection hole is fixedly connected to the medium pipeline 5, and one end of the medium pipeline 5 is fixedly connected to a medium introduction device, and the medium introduction device introduces a pressurized medium between the balloon and the outer tube 2, and the introduced pressurized medium causes the balloon body 11 to be flexibly deformed, thereby wrapping the interventional device to form a sealing effect;

[0028] The outer ring surface at both ends of the outer tube 2 is fixedly provided with an external thread, the end cover 3 is provided with an internal thread matching the external thread of the outer tube 2, the end cover 3 and the outer tube 2 are locked and connected to each other, the sealing rubber valve 4 is clamped at the openings at both ends of the outer tube 2, and the end cover 3 locks the sealing rubber valve 4 at both ends of the outer tube 2, the sealing rubber valve 4 is a concave structure, the sealing rubber valve 4 includes a valve body base 41 and a hemispherical valve cover 42, the valve body base 41 is a circular ring structure, a hemispherical valve cover 42 is fixedly provided on one side of the valve body base 41, and an inlet 43 is fixedly provided on the hemispherical valve cover 42; the hemispherical valve cover 42 is made of soft material, and the valve body base 41 is made of hard material; a plurality of triangular reinforcing ribs 4644 made of soft material are arranged in the concave surface of the hemispherical valve cover 42.

[0029] The concave design of the sealing rubber valve 4 can generate an interactive force to make the sealing rubber valve 4 seal more tightly, that is, after the balloon is subjected to a certain pressure, part of the balloon will be deformed and squeezed toward both ends, and the concave design of the sealing rubber valve 4 with concave ends will be squeezed by the balloon, and the squeezing force of the balloon will make the sealing rubber valve 4 seal more tightly.

[0030] Furthermore, the support member 12 is an annular structure made of a hard material; the inner diameter of the support member 12 is the same as that of the balloon body 11 .

[0031] The hard support member 12 puts the balloon body 11 disposed therebetween into a tensioned state, so that after the medium is withdrawn from between the outer tube 2 and the balloon, the balloon body 11 is more likely to return to its original shape, thereby facilitating the withdrawal of the interventional device.

[0032] The pressurized medium includes one of a pressurized liquid and a pressurized gas.

[0033] Example 2

[0034] The technical solutions of this embodiment are substantially the same as those of the first embodiment, and the distinguishing feature is that an exhaust port is fixedly provided on the outer ring wall of the outer tube 2, and an exhaust membrane is fixedly installed at the exhaust port. The exhaust membrane is made of a material through which only gas can pass, but liquid cannot pass. The pressurized medium in this embodiment is a pressurized liquid. The setting of the exhaust membrane can prevent the presence of additional gas between the outer tube 2 and the balloon after the liquid pressurized medium is injected, thereby preventing the pressure between the outer tube 2 and the balloon from being unstable.

[0035] Example 3

[0036] See also Figure 5 As shown, the technical solutions of this embodiment are substantially the same as those of Embodiment 1 or 2, and the distinguishing feature is that an introduction guide portion 45 is provided at the introduction port 43 of the convex surface of the hemispherical valve cover 42, and a reinforcing rib 46 is fixedly provided on the outer ring surface of one end of the introduction guide portion 45 away from the introduction port 43, and a separation groove 47 corresponding to the introduction port 43 is fixedly provided on the introduction guide portion 45.

[0037] When the introduction piece is introduced into the hemispherical valve cover 42 in Example 1 or Example 2, the introduction port 43 will cause the hemispherical valve cover 42 to be turned outward when the introduction piece is extended from the device due to the pushing effect of the introduction piece. When the hemispherical valve cover 42 is turned outward, the introduction port 43 will be opened, affecting the sealing effect of the hemispherical ball valve. Therefore, the main technical problem solved by this embodiment is the outward turn of the hemispherical valve cover 42. After the introduction guide part 45 is set, the introduction guide part 45 will be tilted toward the inside of the device due to the extrusion of the introduction piece, and will be more closely attached to the introduction piece under the extrusion of the balloon, and the deformed part of the balloon will completely block the separation groove 47, thereby further achieving a better sealing effect.

[0038] The introduction guide portion 45 in this embodiment is provided with a guide port communicating with the introduction port 43 . The guide port is trumpet-shaped, and an end of the guide port with a larger inner diameter is provided at an end away from the hemispherical valve cover 42 .

[0039] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A balloon-type hemostatic valve, comprising a balloon, an outer tube (2), an end cover (3) and a sealing rubber valve (4), characterized in that: The outer tube (2) is a hollow tube made of a hard material, and the balloon is also tubular. The balloon is arranged inside the outer tube (2), and the outer annular surfaces at both ends of the balloon are fixedly mounted on the inner wall of the outer tube (2). A medium connection hole is fixedly provided on the outer wall of the outer tube (2), and the medium connection hole is fixedly connected to a medium pipeline (5). External threads are fixedly provided on the outer annular surfaces at both ends of the outer tube (2). The end cover (3) is provided with an internal thread matching the external thread of the outer tube (2). The end cover (3) and the outer tube (2) are mutually locked and connected. The sealing rubber valve (4) is clamped at the openings at both ends of the outer tube (2), and the end cover (3) locks the sealing rubber valve (4) at both ends of the outer tube (2).

2. The balloon-type hemostatic valve according to claim 1, characterized in that: The balloon comprises a balloon body (11) and a support member (12). The support members (12) are provided at both ends of the balloon body (11), and the support member (12) is integrally formed with the balloon body (11).

3. The balloon hemostatic valve according to claim 2, characterized in that: The balloon body (11) is a soft tube made of polyethylene or thermoplastic polyurethane elastomer.

4. The balloon-type hemostatic valve according to claim 3, characterized in that: The support member (12) is an annular structure made of a hard material, and the inner diameter of the support member (12) is the same as that of the balloon body (11).

5. The balloon-type hemostatic valve according to claim 1, characterized in that: The sealing rubber valve (4) is of an inwardly concave structure, comprising a valve body base (41) and a hemispherical valve cover (42); the valve body base (41) is of an annular structure, a hemispherical valve cover (42) is fixedly provided on one side of the valve body base (41), and an inlet (43) is fixedly provided on the hemispherical valve cover (42).

6. The balloon-type hemostatic valve according to claim 5, characterized in that: The hemispherical valve cover (42) is made of a soft material, and the valve body base (41) is made of a hard material.

7. The balloon-type hemostatic valve according to claim 5, characterized in that: A plurality of triangular reinforcing ribs (46) (44) made of soft material are arranged in the inner concave surface of the hemispherical valve cover (42).

8. The balloon hemostatic valve according to claim 1, characterized in that: One end of the medium pipeline (5) is fixedly connected to a medium introduction device, and the medium introduction device introduces a pressurized medium between the balloon and the outer tube (2).

9. The balloon-type hemostatic valve according to claim 8, characterized in that: The pressurized medium includes one of a pressurized liquid and a pressurized gas.

10. The balloon-type hemostatic valve according to claim 5, characterized in that: An introduction guide portion (45) is provided at the introduction port (43) of the convex surface of the hemispherical valve cover (42), a reinforcing rib (46) is fixedly provided on the outer ring surface of one end of the introduction guide portion (45) away from the introduction port (43), and a separation groove (47) corresponding to the introduction port (43) is fixedly provided on the introduction guide portion (45).

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