Valve assist system sheath

Abstract

The utility model is suitable for the technical field related to medical instruments, and provides a valve auxiliary system sheath which comprises a shell assembly and a catheter sheath tube arranged on the shell assembly. The bending adjusting handle is used for adjusting the angle of the tail end of the catheter sheathing canal, and the bending adjusting handle is connected with the shell assembly; the catheter sheath is used for being matched with the catheter sheath tube to achieve introduction of an interventional instrument or conveying of an auxiliary instrument; the flushing valve is used for conveying medicaments, and the flushing valve is communicated with the catheter sheath through an extension tube body; the catheter sheath tube, the catheter sheath, the flushing valve and other components are arranged in a matched mode, so that the dilator can be always kept in the catheter sheath tube in the original position in the process that the catheter sheath tube enters the access blood vessel of a patient, blood cannot permeate out of a product, use is convenient, and the valve positioning accuracy and the operation safety are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument related technical field especially valve auxiliary system sheath. BACKGROUND

[0002] Heart valve is the vital component in blood circulation system, is responsible for ensuring the one-way flow of blood. However, due to rheumatic heart disease, degenerative heart disease etc. reason, heart valve can be pathological change, lead to stenosis or regurgitation dysfunction, seriously affect the quality of life and life safety of patient.

[0003] The existing valve auxiliary system sheath mostly has the problems of inconvenient use and poor accuracy, which seriously affects the safety of operation. The valve instrument causes great damage to blood vessels during valve replacement, and reduces the secondary injury of patients. Therefore, in view of the above status, it is urgent to provide a valve auxiliary system sheath to overcome the deficiencies in current practical applications. SUMMARY

[0004] The utility model discloses a valve auxiliary system sheath to solve the problems in the above background.

[0005] To solve the above technical problem, the utility model provides a valve auxiliary system sheath, which comprises:

[0006] A shell assembly and a catheter sheath arranged on the shell assembly;

[0007] A bending handle for adjusting the angle of the catheter sheath tube, the bending handle being connected with the shell assembly;

[0008] A catheter sheath for cooperating with the catheter sheath to realize the introduction of interventional instruments or the delivery of auxiliary instruments;

[0009] And a flushing valve for delivering medicaments, the flushing valve being in communication with the catheter sheath through an extension tube.

[0010] As a further scheme of the utility model, the shell assembly comprises a left face shell and a right face shell, and the left face shell and the right face shell are detachably connected.

[0011] As a further scheme of the utility model, the bending handle comprises:

[0012] A guide rail shaft fixedly installed on the shell assembly, one end of the guide rail shaft away from the shell assembly being fixedly installed with a locking cap, and the guide rail shaft being provided with two groups;

[0013] A bending knob rotatably installed between the locking cap and the shell assembly, and the guide rail shaft further slidably installed with a tooth block in screw connection with the inside of the bending knob;

[0014] And a bending wire for adjusting the bending, one end of the bending wire is connected with the catheter sheath, and the other end of the bending wire is fixedly connected with the tooth block through the fixed pull ring.

[0015] As a further scheme of the present utility model: the shell assembly is internally further provided with a stainless steel fixing ring for preventing the bending wire from being damaged and a protective cap for protecting the catheter sheath from being easily bent, and the stainless steel fixing ring is connected with the protective cap.

[0016] As a further scheme of the present utility model: the bending handle further comprises a fixing ring B and a fixing ring A for realizing that the bending knob can be freely rotated without jamming.

[0017] As a further scheme of the present utility model: the fixing ring B is used for connecting the bending knob and the locking cap, and the fixing ring A is used for connecting the bending knob and the shell assembly.

[0018] As a further scheme of the present utility model: the catheter sheath comprises a liquid injection type sealing valve, a dilator and a pressurizing valve used in cooperation with the liquid injection type sealing valve, and the pressurizing valve and the liquid injection type sealing valve are connected through a hose body.

[0019] As a further scheme of the present utility model: the liquid injection type sealing valve comprises:

[0020] A balloon inner member for positioning the dilator, which is arranged in the shell assembly;

[0021] A balloon membrane assembly, which is connected with the balloon inner member through a balloon liquid assembly;

[0022] A sheath seat fixing member for connecting the catheter sheath and the balloon liquid assembly, and a sheath seat sealing member is further arranged between the catheter sheath and the sheath seat fixing member.

[0023] As a further scheme of the present utility model: the dilator comprises a dilator body and a catheter sheath fixing member, and the catheter sheath fixing member is used for fixing the dilator body on the balloon inner member.

[0024] As a further scheme of the present utility model: the end of the catheter sheath is further provided with a developing ring.

[0025] The utility model discloses the following beneficial effects are had with the above technical scheme: dilator is used for the introduction of interventional instrument, or the delivery of auxiliary instrument, and the dilator is fixed on after the catheter sheath fixing piece is assembled with dilator, and the dilator is not easy to fall or shift when the doctor is doing operation, and the balloon liquid component and balloon membrane component, hose pipe body, pressure valve are assembled after being used for injecting physiological saline, and the dilator is inserted into the catheter sheath through the injection type seal valve, and the pressure valve is pressedurized to the valve, so that the catheter sheath is ensured to keep the original position in the sheath in the process of entering the patient access blood vessel, and the blood does not permeate the outside of the product, and the sheath seat sealing piece is used for improving the sealing property after the catheter sheath and sheath seat fixing piece are assembled, and the stainless steel fixed ring is used for preventing the bending wire from damaging the protection cap, and the protection cap is used for protecting the catheter sheath from being easy to bend, and the locking cap is used for fixing the guide rail shaft, and the bending knob is not easy to fall, and the fixed wire ring is used for fixing the bending wire, so that the bending wire can move along with the tooth block, and the tooth block can reciprocate on the guide rail shaft through the mode of rotating the bending knob, and the bending distance is controlled, and the utility model discloses convenient to use, and the accuracy of valve positioning and the safety of operation are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0027] Figure 1 It is the plane structure schematic diagram of the utility model.

[0028] Figure 2 It is the utility model's explosion map.

[0029] Figure 3 It is Figure 2 The enlarged structure schematic diagram of A in the middle.

[0030] Figure 4 It is the internal structure schematic diagram of the utility model shell assembly.

[0031] In the drawing: 1-dilator, 2-catheter sheath fixing part, 3-balloon inner part, 4-balloon liquid component, 5-face shell left, 6-balloon membrane component, 7-locking cap, 8-guide rail shaft, 9-bending knob, 10-fixing ring B, 11-fixing pull wire ring, 12-tooth block, 13-fixing ring A, 14-face shell right, 15-sheath seat fixing part, 16-sheath seat sealing part, 17-stainless steel fixing ring, 18-protection cap, 19-bending wire, 20-catheter sheath, 21-elongated tube tube body, 22-flushing valve, 23-hose tube body, 24-pressurizing valve, 25-syringe, 26-developing ring, 27-dilator tube body, 28-bending handle, 29-liquid injection type sealing valve. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0033] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application should be understood according to the specific circumstances.

[0035] The present application will be further explained and described below in conjunction with specific embodiments.

[0036] Please refer to Figures 1-4 The valve auxiliary system sheath provided by the embodiment of the present application comprises:

[0037] The shell assembly and the catheter sheath 20 arranged on the shell assembly;

[0038] A bending handle 28 for adjusting the angle of the catheter sheath 20 end, which is connected with the shell assembly;

[0039] A catheter sheath for matching the catheter sheath 20 to realize the introduction of interventional instruments or auxiliary instrument delivery;

[0040] And a flush valve 22 for delivering a medicament, which is communicated with the catheter sheath through the extension tube 21.

[0041] In the embodiment of the utility model, the medicament delivered by the flush valve 22 can be contrast medium etc., the catheter sheath 20 is used to enlarge the percutaneous incision in the interventional operation, establishes the passage of catheter introduction blood road, facilitates the introduction of interventional instruments, or the delivery of auxiliary instruments; the utility model discloses a catheter sheath 20, catheter sheath and flush valve 22 etc. Component cooperation setting can make the process that catheter sheath 20 enters patient passage blood vessel ensures that the dilator 1 always keeps in situ in catheter sheath 20, and blood does not penetrate the outside of product, convenient to use, effectively improve the accuracy of valve positioning and the safety of operation.

[0042] In an embodiment of the utility model, please refer to Figures 1-4 , the shell assembly includes face shell left 5 and face shell right 14, and the face shell left 5 and the face shell right 14 are detachably connected;

[0043] The bending handle 28 includes:

[0044] The guide rail shaft 8 is fixedly installed on the shell assembly, and the end of the guide rail shaft 8 away from the shell assembly is fixedly installed with a locking cap 7;

[0045] The bending knob 9 is rotatably installed between the locking cap 7 and the shell assembly, and the guide rail shaft 8 is also slidably installed with a jaw block 12 in threaded connection with the inside of the bending knob 9;

[0046] And a bending wire 19 for adjusting the bending degree, one end of the bending wire 19 is connected with the catheter sheath 20, and the other end of the bending wire 19 is fixedly connected with the jaw block 12 through a fixed wire pulling ring 11;

[0047] The guide rail shaft 8 is provided with two groups;

[0048] The bending handle 28 further includes a fixed ring B 10 and a fixed ring A 13 for realizing the free rotation of the bending knob 9 without jamming phenomenon;

[0049] The fixed ring B 10 is used for the connection between the bending knob 9 and the locking cap 7, and the fixed ring A 13 is used for the connection between the bending knob 9 and the shell assembly;

[0050] The catheter sheath comprises a liquid injection type sealing valve 29, a dilator 1, and a pressurizing valve 24 used in cooperation with the liquid injection type sealing valve 29, which are connected by a hose tube 23; wherein the pressurizing valve 24 can be used in cooperation with a syringe 25 or other medical devices, which are not specifically limited here

[0051] The liquid injection type sealing valve 29 comprises:

[0052] A balloon inner member 3 used for positioning the dilator 1, which is arranged in the housing assembly;

[0053] A balloon membrane assembly 6 connected with the balloon inner member 3 through a balloon liquid assembly 4; after the balloon liquid assembly 4 is assembled with the balloon membrane assembly 6, the hose tube 23, and the pressurizing valve 24, it is used for injecting normal saline, and the dilator 1 is inserted into the catheter sheath tube 20 through the liquid injection type sealing valve 29; the pressurizing valve 24 pressurizes the liquid injection type sealing valve 29, so that the dilator 1 is always kept in place in the catheter sheath tube 20 during the process of the catheter sheath tube 20 entering the blood vessel of the patient, and the blood cannot penetrate the outside of the product;

[0054] A sheath seat fixing member 15 used for connecting the catheter sheath tube 20 with the balloon liquid assembly 4, and a sheath seat sealing member 16 is further arranged between the catheter sheath tube 20 and the sheath seat fixing member 15;

[0055] The dilator 1 comprises a dilator tube 27 and a catheter sheath tube fixing member 2 used for fixing the dilator tube 27 on the balloon inner member 3, so that the dilator tube 27 is not easy to fall off or shift during the operation of the doctor;

[0056] The housing assembly further comprises a stainless steel fixing ring 17 used for preventing the bending wire 19 from being damaged and a protection cap 18 used for protecting the catheter sheath tube 20 from being bent, and the stainless steel fixing ring 17 is connected with the protection cap 18.

[0057] In the embodiment, the dilator 1 is used for the introduction of interventional instruments or the delivery of auxiliary instruments. After the catheter sheath fixing member 2 is assembled with the dilator 1, the dilator 1 is fixed on the catheter sheath 3, so that the dilator 1 is not easy to fall or shift during the operation of a doctor. After the balloon liquid assembly 4 is assembled with the balloon film assembly 6, the hose tube 23 and the pressurizing valve 24, the balloon liquid assembly 4 is used for injecting normal saline. The dilator 1 is inserted into the catheter sheath 20 through the liquid injection type sealing valve 29. The pressurizing valve 24 is pressurized to the valve, so that the dilator 1 is always kept in place in the sheath during the process that the catheter sheath 20 enters the blood vessel of a patient, and blood cannot penetrate the outside of the product. The sheath seat sealing member 16 is used for improving the sealing performance after the catheter sheath 20 is assembled with the sheath seat fixing member 15. The stainless steel fixing ring 17 is used for preventing the bending wire 19 from damaging the protective cap 18. The protective cap 18 is used for protecting the catheter sheath 20 from being easily bent. The locking cap 7 is used for fixing the guide rail shaft 8 and preventing the bending knob 9 from falling. The fixed wire pulling ring 11 is used for fixing the bending wire 19, so that the bending wire 19 can move along with the tooth block 12. The tooth block 12 can reciprocate on the guide rail shaft 8 by rotating the bending knob 9, so as to control the bending distance. The extension tube 21 is used for establishing a passage, so that contrast medium and the like can enter the sheath seat fixing member 15. The hose tube 23 is used for establishing a passage, so that normal saline can enter the liquid injection type sealing valve 29. The syringe 25 is used for containing 3ml normal saline.

[0058] In one embodiment of the utility model, please refer to Figures 1-4 The end of the catheter sheath 20 is further provided with a developing ring 26.

[0059] In the embodiment, the developing ring 26 is used for preventing the developing liquid from flowing and splashing in the body, and ensuring the uniformity of development.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

Claims

1. A valve assist system sheath comprising a housing assembly and a catheter sheath (20) disposed on the housing assembly, characterized by, Also included are: a bending handle (28) for adjusting the angle of the catheter sheath (20) tip, the bending handle (28) being connected with the shell assembly; a catheter sheath for matching the catheter sheath (20) to introduce or assist the delivery of interventional instruments; and a flush valve (22) for delivering a medicament, the flush valve (22) being communicated with the catheter sheath through an extension tube (21).

2. The valve assist system sheath of claim 1, wherein, The shell assembly includes a left face shell (5) and a right face shell (14), which are detachably connected.

3. The valve assist system sheath of claim 1, wherein, The bending handle (28) includes: a guide rail shaft (8) fixedly installed on the shell assembly, one end of the guide rail shaft (8) being fixedly installed with a locking cap (7) away from the shell assembly, and the guide rail shaft (8) being provided with two groups; a bending knob (9) rotatably installed between the locking cap (7) and the shell assembly, and the guide rail shaft (8) further being slidably installed with a jaw block (12) threadedly connected with the inside of the bending knob (9); and a bending wire (19) for adjusting the bending degree, one end of the bending wire (19) being connected with the catheter sheath (20), and the other end of the bending wire (19) being fixedly connected with the jaw block (12) through a fixed wire pulling ring (11).

4. The valve assist system sheath of claim 3, wherein, The shell assembly is further provided with a stainless steel fixing ring (17) for preventing the bending wire (19) from being damaged and a protection cap (18) for protecting the catheter sheath (20) from being easily bent, and the stainless steel fixing ring (17) is connected with the protection cap (18).

5. The valve assist system sheath of claim 3, wherein, The bending handle (28) further includes a fixed ring B (10) and a fixed ring A (13) for realizing the free rotation of the bending knob (9) without jamming.

6. The valve assist system sheath of claim 5, wherein, The fixed ring B (10) is used for connecting the bending knob (9) and the locking cap (7), and the fixed ring A (13) is used for connecting the bending knob (9) and the shell assembly.

7. The valve-assist system sheath of claim 1, wherein, The catheter sheath includes a liquid injection type sealing valve (29), a dilator (1), and a pressurizing valve (24) used in cooperation with the liquid injection type sealing valve (29), the pressurizing valve (24) being connected with the liquid injection type sealing valve (29) through a hose body (23).

8. The valve-assist system sheath of claim 7, wherein, The liquid injection type sealing valve (29) includes: a balloon inner member (3) for positioning the dilator (1), the balloon inner member (3) being arranged in the shell assembly; a balloon membrane assembly (6) connected with the balloon inner member (3) through a balloon liquid assembly (4); a sheath seat fixing member (15) for connecting the catheter sheath (20) and the balloon liquid assembly (4), and a sheath seat sealing member (16) being further arranged between the catheter sheath (20) and the sheath seat fixing member (15).

9. The valve-assist system sheath of claim 8, wherein, The dilator (1) includes a dilator body (27) and a catheter sheath fixing member (2) for fixing the dilator body (27) on the balloon inner member (3).

10. The valve-assist system sheath of claim 1, wherein, The tip of the catheter sheath (20) is further provided with a developing ring (26).

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