Catheter sheath device with hemostasis valve

Abstract

The utility model belongs to the technical field of catheter sheath devices, and particularly relates to a catheter sheath device with a hemostasis valve, which comprises a hemostasis valve body, one end of the hemostasis valve body is connected with a sheath tube, the side surface of the hemostasis valve body is connected with a branch tube, the other end of the branch tube is fixedly connected with a three-way valve, and the hemostasis valve body comprises a valve head, a valve body and a top head, a second fixing ring is fixedly connected to the inner wall of the valve body, a hard sealing piece is arranged on one side of the second fixing ring, an adjusting ring is rotationally connected to the outer wall of the valve body, a gear ring is fixedly connected to the inner wall of the adjusting ring, and mounting grooves are formed in the upper position and the lower position of the end, close to the top head, of the valve body. Under the mutual cooperation of the adjusting ring, the toothed ring, the lead screw, the gear, the ejector head, the mounting cylinder and the guide pipe, the interventional catheter can conveniently pass through the hard sealing piece, and effective sealing can be formed by using the hard sealing piece.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of catheter sheath device, specifically is a catheter sheath device with hemostatic valve. BACKGROUND

[0002] In the treatment field of cardiovascular disease, interventional therapy is widely used because of its advantages of less bleeding, small trauma, fewer complications, safety and reliability and fast postoperative recovery. As an auxiliary guide instrument for arteriovenous interventional operation, catheter sheath plays an important role in interventional therapy.

[0003] In the prior art, the catheter sheath with hemostatic valve has the advantages of effective hemostasis, reduced infection and simplified operation compared with the general catheter sheath. The core component in the hemostatic valve is an elastic sealing sheet. A cut is formed on the surface of the sealing sheet. During use, the interventional instrument is inserted through the cut, and then the sealing sheet is pressed and wrapped around the surface of the interventional instrument to form a seal, thereby achieving the purpose of reducing bleeding. However, if the hardness of the sealing sheet is too large, it will cause difficulty in inserting and moving the interventional instrument, and will also affect the head of the instrument. If the hardness is too small, the sealing performance cannot be guaranteed. SUMMARY

[0004] The utility model aims at providing a catheter sheath device with hemostatic valve, which facilitates the passage of the interventional catheter through the sealing sheet and can form effective sealing with the hard sealing sheet.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a catheter sheath device with hemostatic valve, which comprises a hemostatic valve body, one end of the hemostatic valve body is connected with a sheath tube, the side surface of the hemostatic valve body is connected with a branch pipe, the other end of the branch pipe is fixedly connected with a three-way valve, the hemostatic valve body comprises a valve head, a valve body and a top head, the top head is slidably sleeved in the valve body, a fixed ring two is fixedly connected on the inner wall of the valve body, a hard sealing sheet is arranged on one side of the fixed ring two, an adjusting ring is rotatably connected on the outer wall of the valve body, a tooth ring is fixedly connected on the inner wall of the adjusting ring, installation grooves are formed on the upper and lower positions of one end of the valve body close to the top head, and a screw rod is rotatably connected in each installation groove, a gear is fixedly connected on the outer wall of each screw rod, and the two gears are meshingly arranged with the tooth ring, a mounting cylinder is fixedly connected on the upper and lower positions of the top head, the two mounting cylinders are slidably sleeved in the two installation grooves, and the two mounting cylinders are respectively threadedly connected on the outer walls of the two screw rods, and a guide pipe is fixedly connected on the inner wall of the top head.

[0006] Optionally, a side pipe interface is fixedly connected on the lower end of the valve head, a fixed ring one is fixedly connected on the inner wall of the valve head, a thread is fixedly formed on the inner wall of one end of the valve head close to the valve body, and the thread is arranged at the position on one side of the fixed ring one.

[0007] Optionally, the sheath is fixedly connected to the inner wall of the pipe orifice at the end of the valve head away from the valve body, and the branch pipe is fixedly connected to the inner wall of the pipe orifice of the side pipe interface.

[0008] Optionally, a threaded cylinder is movably sleeved in the valve body, one end of the threaded cylinder is fixedly connected to a limiting block, and the other end of the threaded cylinder is threadedly connected to the threaded inner wall of the valve head.

[0009] Optionally, a limiting groove is formed in the inner wall of the end of the valve body away from the valve head, the limiting block is slidably connected in the limiting groove, the hard sealing sheet is arranged between the limiting block and the fixed ring, recesses are formed in the inner walls of the two limiting grooves, clamping blocks are slidably connected in the two limiting blocks, and the two clamping blocks are respectively clamped in the two recesses.

[0010] Optionally, the upper and lower inner walls of the threaded cylinder are slidably connected with pressing rods, the two pressing rods are respectively arranged to penetrate through the two limiting blocks, the inner walls of the upper and lower valve bodies of the threaded cylinder are respectively provided with guide grooves, the guide grooves are slidably connected with sliding plates, the sliding plates and the inner walls of the guide grooves are fixedly connected with springs, the springs are movably sleeved on the outer ends of the pressing rods, and the sliding plates are fixedly connected to the outer walls of the pressing rods.

[0011] Compared with the prior art, the utility model has the advantages of the following:

[0012] 1、 the utility model discloses a mutual cooperation of adjusting ring, gear ring, screw rod, gear, top head, installation cylinder and guide pipe can drive the gear ring to rotate through rotating adjusting ring before intervention catheter enters hard sealing sheet, thereby control gear rotation, and then control installation cylinder movement through driving screw rod rotation, thereby drive top head to move, and then drive guide pipe to pass through hard sealing sheet, after the intervention catheter is conveniently worn in the guide pipe and is in position, reverse adjusting ring makes top head reset, namely can make guide pipe and hard sealing sheet separate, thereby utilize hard sealing sheet to form effective sealing to intervention catheter, and convenient operation is achieved.

[0013] 2、 the utility model discloses fixed ring one, fixed ring two, threaded cylinder, pressing rod, clamping block, sliding plate, spring, limiting block are provided with limiting groove and threaded cylinder's inner wall on the inner wall of the valve body and are provided with guide groove, thereby can utilize limiting block and slide sleeve limiting groove, and utilize clamping block and enter recess in limiting groove, and then the valve head is threadedly connected to threaded cylinder outer wall and is rotated in position after hard sealing sheet is driven limiting block to move through threaded cylinder, and is pressed and fixedly installed on one side of fixed ring two, and the installation mode is convenient for the dismounting replacement of valve head and hard sealing sheet, and the valve body and its internal structure are reserved to be used again, thereby reduce cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the first perspective view of the hemostatic valve body.

[0017] Figure 3 It is a schematic diagram of the second perspective view of the hemostatic valve body.

[0018] Figure 4 It is a schematic diagram of the split structure of the hemostatic valve.

[0019] Figure 5 It is a schematic diagram of the internal structure of the threaded cylinder.

[0020] In the figure: 1, hemostatic valve body; 101, valve head; 102, side pipe interface; 103, fixed ring one; 104, valve body; 105, fixed ring two; 106, limiting groove; 107, threaded cylinder; 108, limiting block; 109, hard sealing sheet; 110, adjusting ring; 111, tooth ring; 112, screw rod; 113, gear; 114, top head; 115, mounting cylinder; 116, guide pipe; 117, pressing rod; 118, guide groove; 119, clamping block; 120, sliding plate; 121, spring; 2, sheath tube; 3, three-way valve; 4, branch pipe. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0025] Referring to Figures 1-5 A catheter sheath device with a hemostatic valve is provided. The catheter sheath device with a hemostatic valve comprises a hemostatic valve body 1, one end of the hemostatic valve body 1 is connected with a sheath tube 2, the side surface of the hemostatic valve body 1 is connected with a branch pipe 4, the other end of the branch pipe 4 is fixedly connected with a three-way valve 3, the hemostatic valve body 1 comprises a valve head 101, a valve body 104 and a top head 114, the top head 114 is slidingly sleeved in the valve body 104, a fixed ring two 105 is fixedly connected on the inner wall of the valve body 104, a hard sealing sheet 109 is arranged on one side of the fixed ring two 105, an adjusting ring 110 is rotatably connected on the outer wall of the valve body 104, a tooth ring 111 is fixedly connected on the inner wall of the adjusting ring 110, installation grooves are arranged on the upper and lower positions of one end of the valve body 104 close to the top head 114, and a lead screw 112 is rotatably connected in each installation groove, a gear 113 is fixedly connected on the outer wall of each lead screw 112, and the two gears 113 are meshingly arranged with the tooth ring 111, an installation cylinder 115 is fixedly connected on the upper and lower positions of the top head 114, the two installation cylinders 115 are slidingly sleeved in the two installation grooves, and the two installation cylinders 115 are respectively threadedly connected on the outer walls of the two lead screws 112, a guide pipe 116 is fixedly connected on the inner wall of the top head 114, the tooth ring 111 is driven to rotate by rotating the adjusting ring 110, thereby driving the top head 114 to move, and further driving the guide pipe 116 to pass through the hard sealing sheet 109, so that the interventional catheter is conveniently inserted through the inside of the guide pipe 116, after the interventional catheter is installed to a suitable position, the adjusting ring 110 is reversed, so that the guide pipe 116 is separated from the hard sealing sheet 109, thereby forming effective sealing of the interventional catheter by the hard sealing sheet 109.

[0026] The catheter sheath device with the hemostasis valve is convenient for the interventional catheter to pass through the hard sealing sheet 109, and can form effective sealing by the hard sealing sheet 109.

[0027] In another embodiment of the utility model, refer to Figure 1 、 Figure 2 and Figure 4 , the lower end of valve head 101 is fixedly connected with side pipe interface 102, the inner wall of valve head 101 is fixedly connected with fixed ring one 103, the inner wall of the one end of valve head 101 close to valve body 104 is fixedly provided with screw threads, the screw threads are arranged at the one side position of fixed ring one 103, the screw threads are used for screwing threaded cylinder 107, sheath pipe 2 is specifically fixedly connected in the inner wall of the one end pipe orifice of valve head 101 away from valve body 104, branch pipe 4 is specifically fixedly connected in the inner wall of the pipe orifice of side pipe interface 102, and the connection of sheath pipe 2 and branch pipe 4 with the hemostasis valve is the conventional mode connection in the field, which will not be repeated here.

[0028] In another embodiment of the utility model, refer to Figures 2 to 4 , threaded cylinder 107 is movably sleeved in valve body 104, one end of threaded cylinder 107 is fixedly connected with limiting block 108, the other end of threaded cylinder 107 is screwedly connected in the threaded inner wall of valve head 101, and the connecting mode is used for conveniently disassembling valve head 101 and threaded cylinder 107.

[0029] In another embodiment of the utility model, refer to Figures 3 to 5The valve body 104 is provided with a limiting groove 106 on the inner wall of the end far from the valve head 114, a limiting block 108 is slidingly connected in the limiting groove 106, a hard sealing sheet 109 is arranged between the limiting block 108 and the fixed ring two 105, recesses are formed on the inner walls of the two limiting grooves 106, clamping blocks 119 are slidingly connected in the two limiting blocks 108, the two clamping blocks 119 are respectively clamped in the two recesses, pressure rods 117 are slidingly connected on the upper and lower inner walls of the threaded cylinder 107, and the two pressure rods 117 are respectively arranged through the two limiting blocks 108, guide grooves 118 are formed in the inner walls of the upper and lower valve bodies of the threaded cylinder 107, sliding plates 120 are slidingly connected in the two guide grooves 118, springs 121 are fixedly connected between the sliding plates 120 and the inner walls of the guide grooves 118, the springs 121 are movably sleeved on the outer ends of the pressure rods 117, and the sliding plates 120 are fixedly connected on the outer walls of the pressure rods 117.

[0030] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A catheter sheath device with a hemostatic valve, comprising a hemostatic valve body (1), one end of the hemostatic valve body (1) is connected with a sheath tube (2), the side of the hemostatic valve body (1) is connected with a branch pipe (4), the other end of the branch pipe (4) is fixedly connected with a three-way valve (3), characterized in that: The hemostatic valve body (1) includes a valve head (101), a valve body (104) and a top head (114), the top head (114) is sleeved in the valve body (104), the inner wall of the valve body (104) is fixedly connected with a fixed ring two (105), one side of the fixed ring two (105) is provided with a hard sealing sheet (109), the outer wall of the valve body (104) is rotatably connected with an adjusting ring (110), the inner wall of the adjusting ring (110) is fixedly connected with a tooth ring (111), the valve body (104) is provided with an installation groove at the upper and lower positions of one end close to the top head (114), and two installation grooves are rotatably connected with a lead screw (112), the outer wall of the two lead screws (112) is fixedly connected with a gear (113), and the two gears (113) are meshed with the tooth ring (111), the upper and lower positions of the top head (114) are fixedly connected with an installation cylinder (115), two installation cylinders (115) are sleeved in two installation grooves, and two installation cylinders (115) are respectively screwed on the outer wall of two lead screws (112), and the inner wall of the top head (114) is fixedly connected with a guide pipe (116).

2. A catheter sheath device having a hemostasis valve as defined in claim 1, wherein: The lower end of the valve head (101) is fixedly connected with a side pipe interface (102), the inner wall of the valve head (101) is fixedly connected with a fixed ring one (103), and a thread is fixedly arranged on the inner wall of one end of the valve head (101) close to the valve body (104).

3. A catheter sheath device having a hemostasis valve as defined in claim 2, wherein: The sheath pipe (2) is fixedly connected to the inner wall of the pipe opening of one end of the valve head (101) away from the valve body (104), and the branch pipe (4) is fixedly connected to the inner wall of the pipe opening of the side pipe interface (102).

4. The catheter sheath device with hemostasis valve of claim 1, wherein: The valve body (104) movably sleeves a threaded cylinder (107), one end of the threaded cylinder (107) is fixedly connected with a limiting block (108), and the other end of the threaded cylinder (107) is screwed in the threaded inner wall of the valve head (101).

5. A catheter sheath device having a hemostasis valve as defined in claim 4, wherein: The inner wall of one end of the valve body (104) away from the top head (114) is provided with a limiting groove (106), the limiting block (108) is slidably connected in the limiting groove (106), the hard sealing sheet (109) is arranged between the limiting block (108) and the fixed ring two (105), recesses are formed in the inner walls of the two limiting grooves (106), the two limiting blocks (108) are slidably connected with clamping blocks (119), and the two clamping blocks (119) are respectively clamped in the two recesses.

6. A catheter sheath device having a hemostasis valve as defined in claim 5, wherein: The upper and lower inner walls of the threaded cylinder (107) are slidably connected with pressing rods (117), and the two pressing rods (117) respectively penetrate through two limiting blocks (108), the inner parts of the upper and lower plate bodies of the threaded cylinder (107) are both provided with guide grooves (118), the two guide grooves (118) are both slidably connected with sliding plates (120), the sliding plates (120) and the inner walls of the guide grooves (118) are fixedly connected with springs (121), the springs (121) are movably sleeved on the outer ends of the pressing rods (117), and the sliding plates (120) are fixedly connected on the outer walls of the pressing rods (117).

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