Duckbilled sealing hemostasis valve

Abstract

The utility model discloses a duckbilled sealing hemostasis valve, which comprises a first connecting seat, a valve body shell, a first diaphragm and a duckbilled sealing element, the inner wall of one end of the valve body shell is fixedly provided with an internal thread, the valve body shell is fixedly connected with the first connecting seat through the internal thread, the other end of the valve body shell is fixedly provided with a connector, and the connector is fixedly connected with the duckbilled sealing element. A first diaphragm and a duckbilled sealing element are respectively clamped in the valve body shell in a sliding manner, the first diaphragm and the duckbilled sealing element are clamped and fixed in the valve body shell in a limiting manner through a first connecting seat, and the first diaphragm is arranged between the duckbilled sealing element and the first connecting seat. Due to the design of the duckbilled sealing valve with the S-shaped supporting piece, after the interventional catheter is withdrawn, the duckbilled sealing has good sealing performance, and blood is prevented from flowing out through the hemostasis valve.

Description

TECHNICAL FIELD

[0001] The utility model relates to a medical instrument field, especially a duckbill type sealed hemostasis valve. BACKGROUND

[0002] The hemostasis valve is a kind of medical instrument for controlling and preventing bleeding, is widely used in surgical operation, trauma treatment and vascular intervention etc., the hemostasis valve of the application is used for the auxiliary hemostasis when catheter is introduced and exported during operation.

[0003] And the existing hemostasis valve is poor in hemostasis effect when using, first catheter introduction is difficult, simultaneously, blood is easy to flow along catheter when catheter is withdrawn, cannot satisfy the demand during operation, to this, the application provides a new duckbill type sealed hemostasis valve. UTILITY MODEL CONTENT

[0004] The utility model discloses a duckbill type sealed hemostasis valve.

[0005] To achieve the above-mentioned purpose, the utility model takes the technical scheme that:

[0006] A duckbill type sealed hemostasis valve, including first connecting seat, valve body shell, first diaphragm and duckbill type sealing piece, the inner wall of one end of valve body shell is fixed and is provided with internal thread, and valve body shell is locked with first connecting seat by internal thread, and the other end of valve body shell is fixed with connecting head, and first diaphragm and duckbill type sealing piece are slidably clamped in valve body shell, and first diaphragm and duckbill type sealing piece are clamped in valve body shell by first connecting seat, and first diaphragm is located between duckbill type sealing piece and first connecting seat.

[0007] Further, the duckbill type sealing piece includes a sealing piece housing, a first soft sealing piece, and a second soft sealing piece. The first and second soft sealing pieces have the same structure and are symmetrically arranged in the sealing piece housing. The first and second soft sealing pieces are in close contact to form an introduction opening.

[0008] Further, the first and second soft sealing pieces each include an arc-shaped portion, a duckbill extension portion, and a support portion. One end of the arc-shaped portion is fixedly provided with the duckbill extension portion. The support portion is arranged between the duckbill extension portion and the sealing piece housing.

[0009] Further, the support portion is an S-shaped reinforcing rib. The number of S-shaped reinforcing ribs arranged on one side of the first or second soft sealing piece is not less than one.

[0010] Further, a second reinforcing rib is fixedly arranged between the S-shaped reinforcing rib and the duckbill extension portion. The second reinforcing rib is in the shape of an arc.

[0011] Further, the arc-shaped part of the first soft sealing member and the second soft sealing member is connected to form a guide groove recessed from the first connecting seat to the one end of the connecting head.

[0012] Further, the center of the first diaphragm is provided with a diaphragm opening, the diaphragm opening comprises a first cross opening arranged on the front surface of the first diaphragm and a second cross opening arranged on the back surface of the first diaphragm, the cross intersection of the first cross opening and the second cross opening is on the same straight line, the first cross opening and the second cross opening do not penetrate the first diaphragm, and the depth of the first cross opening and the second cross opening is greater than half of the thickness of the first diaphragm, the second cross opening is rotated by 45 degrees from the center of the cross, that is, the front view of the first cross opening is cross-shaped, and the front view of the second cross opening is X-shaped.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The duck-billed sealing member is provided with an S-shaped supporting piece, and the duck-billed sealing valve with the S-shaped supporting piece is designed to have good sealing performance and prevent blood from flowing out through the hemostatic valve after the interventional catheter is withdrawn. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a perspective view of the utility model after being cut;

[0017] Figure 3 It is a perspective view of the duck-billed sealing member of the utility model;

[0018] Figure 4 It is another perspective view of the duck-billed sealing member of the utility model;

[0019] Figure 5 It is a perspective view of the first diaphragm of the utility model;

[0020] Figure 6 It is a perspective view of the duck-billed sealing member in embodiment 2 of the utility model.

[0021] REFERENCE NUMERALS

[0022] 1. first connecting seat; 2. valve body shell; 3. first diaphragm; 4. duck-billed sealing member; 5. connecting head; 6. sealing member shell; 7. first soft sealing member; 8. second soft sealing member; 9. duck-billed extension; 10. supporting part; 11. second reinforcing rib; 12. diaphragm opening; 13. arc-shaped part. DETAILED DESCRIPTION

[0023] The advantages and features of the present application will be more easily understood by those skilled in the art from the preferred embodiments of the present application described in detail below with reference to the accompanying drawings, so that the scope of protection of the present application can be more clearly defined.

[0024] Referring to Figures 1-5 As shown in the figure, a duckbill type sealing hemostatic valve comprises a first connecting seat 1, a valve body shell 2, a first diaphragm 3 and a duckbill type sealing piece 4, an inner thread is fixedly arranged on the inner wall of one end of the valve body shell 2, the valve body shell 2 is locked and connected with the first connecting seat 1 through the inner thread, a connecting head 5 is fixedly arranged on the other end of the valve body shell 2, the first diaphragm 3 and the duckbill type sealing piece 4 are respectively slidably clamped in the valve body shell 2, the first diaphragm 3 and the duckbill type sealing piece 4 are clamped and fixed in the valve body shell 2 through the first connecting seat 1, and the first diaphragm 3 is arranged between the duckbill type sealing piece 4 and the first connecting seat 1.

[0025] A stepped limiting groove is arranged in the valve body shell 1, a limiting part matched with the stepped limiting groove is arranged on the outer ring surface of the duckbill type sealing piece 4, a convex ring is arranged on the connecting surface of the duckbill type sealing piece 4 and the first diaphragm 3, a ring-shaped groove matched with the convex ring is arranged on the first diaphragm 3, the limiting between the duckbill type sealing piece 4 and the first diaphragm 3 is realized through the cooperation of the ring-shaped groove and the convex ring, and the first diaphragm 3 and the duckbill type sealing piece 4 are pressed and fixed in the valve body shell through the first connecting seat 1.

[0026] The first sealing is realized through the duckbill type sealing piece 4, the second sealing is realized through the first diaphragm 3, and the locking of the first diaphragm 3 and the duckbill type sealing piece 4 is realized through the first connecting seat 1, so that the duckbill type sealing piece 4 can realize better sealing and sealing force.

[0027] The duckbill type sealing piece 4 comprises a sealing piece shell 6, a first soft sealing piece 7 and a second soft sealing piece 8, the first soft sealing piece 7 and the second soft sealing piece 8 are the same in structure, the first soft sealing piece 7 and the second soft sealing piece 8 are symmetrically arranged in the sealing piece shell 6, and the first soft sealing piece 7 and the second soft sealing piece 8 are in close contact to form a leading opening.

[0028] The first soft sealing piece 7 and the second soft sealing piece 8 each comprise an arc-shaped part 13, a duckbill extension part 9 and a supporting part 10, one end of the arc-shaped part 13 is fixedly provided with the duckbill extension part 9, and the supporting part 10 is arranged between the duckbill extension part 9 and the sealing piece shell 6.

[0029] The connecting part of the arc-shaped part 13 arranged on the first soft sealing piece 7 and the second soft sealing piece 8 forms a guide groove recessed from the first connecting seat 1 to one end of the connecting head 5.

[0030] The guiding groove formed by the arc-shaped part 13 can realize the guiding effect when the catheter is introduced, and meanwhile, through the structure cooperation of the arc-shaped part 13 and the duckbill extension part 9, the situation that the duckbill type sealing piece 4 is turned outwards due to the large directional pressure of the connector 5 is prevented, and meanwhile, through the support part 10, the stability of the overall structure is improved.

[0031] The support part 10 is an S-shaped reinforcing rib, and the number of the S-shaped reinforcing ribs arranged on one side of the first soft sealing piece 7 or the second soft sealing piece 8 is not less than one.

[0032] The S-shaped reinforcing rib, through the structure design of the S shape, can provide better closing force without affecting the opening of the duckbill part, realize better adhesion with the interventional instrument, and thus realize better sealing effect.

[0033] The first diaphragm 3 is provided with a diaphragm opening 12 at the center, the diaphragm opening 12 includes a first cross opening arranged on the front surface of the first diaphragm 3 and a second cross opening arranged on the back surface of the first diaphragm 3, the cross intersection part of the first cross opening and the second cross opening is on the same straight line, the first cross opening and the second cross opening do not penetrate the first diaphragm 3, and the depth of the first cross opening and the second cross opening is greater than half the thickness of the first diaphragm 3, the second cross opening is rotated by 45 degrees from the center of the cross, that is, the front view of the first cross opening is cross-shaped, and the front view of the second cross opening is X-shaped.

[0034] It should be noted that the deflection angle of the second cross opening relative to the first cross opening can also be other angles, and the deflection angle is preferably 45 degrees.

[0035] Embodiment 2

[0036] Referring to Figure 6 , the technical solution of the embodiment is basically the same as that of embodiment 1, and the difference is that a second reinforcing rib 11 is further arranged between the S-shaped reinforcing rib and the duckbill extension part 9, and the second reinforcing rib 11 is in the shape of a circular arc.

[0037] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above embodiments, but any equivalent modification or change made by those skilled in the art according to the disclosed content of the present application shall be included in the protection scope recorded in the claims.

Claims

1. A duckbill seal hemostatic valve comprising a first connection seat (1), a valve body housing (2), a first septum (3) and a duckbill seal (4), characterized in that: The inner wall of one end of the valve body shell (2) is fixedly provided with an internal thread, the valve body shell (2) is locked and connected with the first connecting seat (1) through the internal thread, the other end of the valve body shell (2) is fixedly provided with a connecting head (5), the first diaphragm (3) and the duckbill seal (4) are respectively slidably clamped in the valve body shell (2), the first diaphragm (3) and the duckbill seal (4) are clamped and fixed in the valve body shell (2) through the first connecting seat (1), and the first diaphragm (3) is arranged between the duckbill seal (4) and the first connecting seat (1).

2. The duckbill seal hemostatic valve of claim 1, wherein: The duckbill seal (4) comprises a seal shell (6), a first soft seal (7) and a second soft seal (8), the first soft seal (7) and the second soft seal (8) are the same in structure, the first soft seal (7) and the second soft seal (8) are symmetrically arranged in the seal shell (6), and the first soft seal (7) and the second soft seal (8) are in close contact to form an introduction opening.

3. A duckbill seal hemostatic valve according to claim 2, wherein: The first soft seal (7) and the second soft seal (8) each comprise an arc-shaped part (13), a duckbill extension part (9) and a support part (10), one end of the arc-shaped part (13) is fixedly provided with the duckbill extension part (9), and the support part (10) is arranged between the duckbill extension part (9) and the seal shell (6).

4. The duckbill seal hemostatic valve of claim 3, wherein: The support part (10) is an S-shaped reinforcing rib, and the number of the S-shaped reinforcing ribs arranged on one side of the first soft seal (7) or the second soft seal (8) is not less than one.

5. A duckbill seal hemostatic valve according to claim 4, wherein: A second reinforcing rib (11) is further fixedly arranged between the S-shaped reinforcing rib and the duckbill extension part (9), and the second reinforcing rib (11) is in the shape of an arc.

6. The duckbill seal hemostatic valve of claim 3, wherein: The arc-shaped part (13) arranged on the first soft seal (7) and the second soft seal (8) forms a guide groove recessed from the first connecting seat (1) to one end of the connecting head (5) at the connection position.

7. The duckbill seal hemostatic valve of claim 1, wherein: A diaphragm opening (12) is arranged at the center of the first diaphragm (3), the diaphragm opening (12) comprises a first cross opening arranged on the front surface of the first diaphragm (3) and a second cross opening arranged on the back surface of the first diaphragm (3), the cross intersection of the first cross opening and the second cross opening is on the same straight line, the first cross opening and the second cross opening do not penetrate the first diaphragm (3), the depth of the first cross opening and the second cross opening is greater than half the thickness of the first diaphragm (3), the second cross opening is rotated by 45 degrees about the cross center, the front view of the first cross opening is in the shape of a cross, and the front view of the second cross opening is in the shape of X.

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