Vascular puncture sheath structure convenient to fix

Abstract

The utility model discloses a blood vessel puncture sheath structure convenient to fix, which relates to the technical field of blood vessel puncture and comprises a first tube barrel and a second tube barrel fixed at one end of the first tube barrel, one end of the second tube barrel is fixedly connected with a sheath tube, and channels are arranged in the sheath tube, the second tube barrel and the first tube barrel. An inner core tube is arranged in the channel, and a tube cap is arranged at one end of the inner core tube; a supporting rod is movably arranged at the top of the first pipe barrel, and an angle adjusting and positioning assembly is arranged between the end of the supporting rod and the top of the first pipe barrel. The fixing structure of the blood vessel puncture sheath is formed, the mode that in the prior art, a side hole suture needle is adopted for fixing treatment is replaced, the problems that a user feels painful and cross infection occurs are avoided, the unfolding angle between the fastening structure and the blood vessel sheath is changed, the blood vessel sheath can puncture different areas of the wrist, and the blood vessel puncture effect is improved. And the use efficiency of the whole vascular sheath is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blood vessel puncture, in particular to a blood vessel puncture sheath structure convenient for fixation. Background Technique

[0002] The catheter insertion sheath is abbreviated as the catheter sheath, also known as the blood vessel sheath. This is a professional interventional radiology instrument that establishes an access channel from the skin to the blood vessel lumen, facilitates repeated insertion or exchange of instruments into the blood vessel, and protects the punctured blood vessel during the repeated entry and exit of the instruments into and out of the blood vessel. It consists of three parts: a (short) guide wire, a dilator, and an outer sheath tube. The tail section of the outer sheath tube is provided with a hemostatic valve and a side arm. The hemostatic valve not only prevents the blood in the blood vessel from overflowing out of the body but also prevents the gas outside the body from entering the blood vessel; the side arm is provided with a switch, which can be used to inject drugs through the side arm, flush heparinized saline through the side arm to prevent blood coagulation in the gap between the outer sheath and the guide rail, and can also be used as a channel for intravascular pressure detection, etc.

[0003] After retrieval, a blood vessel puncture sheath with the patent publication number CN206183347U includes a sheath tube and a tube seat connected to the first end of the sheath tube; a channel communicating with the inside of the sheath tube is provided in the tube seat, and a plurality of guide ports communicating with the channel are provided on the tube seat; one-way valves are provided in the guide ports. The blood vessel puncture sheath of the utility model is applicable to arterial blood vessels. The arrangement of a plurality of guide ports on the tube seat facilitates the simultaneous insertion of multiple catheters or guide needles to deliver drugs, and is convenient to use.

[0004] Combined with the above patent, it is found that the following technical problems exist in the prior art: when the prior art blood vessel sheath is in use, a side hole suture method is adopted for fixation treatment. However, the suture fixation method will increase the pain of the user and also cause the user to move around, affecting the insertion operation of the blood vessel sheath. In severe cases, cross-infection problems will occur. Therefore, it is urgent to design a blood vessel puncture sheath structure convenient for fixation to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a blood vessel puncture sheath structure convenient for fixation is proposed. Its advantage lies in forming a fixed structure of the blood vessel puncture sheath, replacing the side hole suture method in the prior art for fixation treatment, and avoiding the problems of pain to the user and cross-infection.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A vascular puncture sheath structure convenient for fixation, comprising a first tube and a second tube fixed to one end of the first tube. One end of the second tube is fixedly connected with a sheath tube, and a channel is arranged inside the sheath tube, inside the second tube and inside the first tube. An inner core tube is arranged in the channel, and a tube cap is arranged at one end of the inner core tube;

[0008] A support rod is movably arranged on the top of the first tube, and an angle adjustment and positioning component is arranged between the end of the support rod and the top of the first tube;

[0009] One end of the support rod is provided with an adjustment groove, and a fastening structure is movably arranged inside the adjustment groove. The fastening structure is sleeved on the sheath tube.

[0010] The present utility model is further configured such that the angle adjustment and positioning component includes an installation groove opened at the end of the support rod, and an installation seat fixed on the first tube and inserted into the installation groove. Installation holes are opened at both ends of the installation groove, and a rotating shaft rotatably connected to the inner wall of the installation hole is fixed on the installation seat. Positioning discs are fixed at both ends of the rotating shaft, and equally spaced positioning grooves are opened on the positioning discs. A positioning structure is arranged in the positioning grooves. The positioning structure includes a through groove opened on the support rod, and a moving sleeve block is movably arranged on the inner wall of the through groove. A guiding rod passing through the moving sleeve block is fixed between the inner walls at both ends of the through groove. A handle rod is fixed to the top of the moving sleeve block, and a U-shaped clamping plate inserted into the positioning groove is fixed to the bottom of the moving sleeve block. A spring is fixed between one side of the moving sleeve block and the inner wall of one end of the through groove.

[0011] Through the above technical solutions: changing the deployment angle between the fastening structure and the blood vessel sheath enables the blood vessel sheath to puncture different regions of the wrist, improving the use efficiency of the entire blood vessel sheath.

[0012] The present utility model is further configured such that the fastening structure includes a movable seat movably arranged inside the adjustment groove, and a reinforcement ring is fixedly installed at the bottom of the movable seat. A support platform is fixed to the bottom of the reinforcement ring. A first through groove is opened on one side of the bottom of the reinforcement ring and on the movable seat, and a second through groove is opened on the other side of the bottom of the reinforcement ring and on the movable seat. A first binding band is inserted into the first through groove, and a second binding band is inserted into the second through groove. One end of the second binding band is fixed to one end of the first binding band. Notch openings are opened at the top of one side of the first binding band and at the top of one side of the second binding band, and a magic mother sticker and a magic son sticker are respectively fixed to the inner walls of the notch openings. The magic mother sticker and the magic son sticker are fixed to each other. A binding strip is fixed at the middle position of the inner wall of the first binding band. The parts of the first binding band and the second binding band located inside the reinforcement ring are circular in shape, and a through opening for the second binding band to pass through is opened on the first binding band.

[0013] Through the above technical solutions, a fixing structure for the vascular puncture sheath is formed, replacing the method of using side-hole sewing needles in the prior art for fixing, thus avoiding pain to the users and the problem of cross-infection.

[0014] The utility model is further configured such that an upper inner wall of the reinforcing ring is provided with connection ports which are equidistantly distributed in a circular shape, and elastic cloth is fixed between inner walls at one ends of the connection ports and an inner wall of the first restraint strap.

[0015] Through the above technical solutions, the adjusted first restraint strap and the second restraint strap have a reset function due to the action of the elastic cloth.

[0016] The utility model is further configured such that a cleaning pipe is fixedly connected to one side of the first tube, and a switch valve is provided at one end of the cleaning pipe.

[0017] Through the above technical solutions, it is convenient to flush and clean the entire vascular sheath.

[0018] The beneficial effects of the utility model are as follows:

[0019] 1. For the structure of the vascular puncture sheath that is convenient to fix, through the provided fastening structure, support platform, connection ports and elastic cloth, the reinforcing ring in the fastening structure is sleeved on the wrist, the first restraint strap and the second restraint strap are pulled to move, so that the area of the connection part between the first restraint strap and the second restraint strap gradually decreases, and the first restraint strap and the second restraint strap are fixed by the magic mother sticker and the magic son sticker, thereby forming a fixing structure for the vascular puncture sheath, replacing the method of using side-hole sewing needles in the prior art for fixing, avoiding pain to the users and the problem of cross-infection, and the height position of the fastening structure can be adjusted in cooperation with the adjustment groove to meet the usage requirements of different people.

[0020] 2. For the structure of the vascular puncture sheath that is convenient to fix, through the provided support rod, first tube, angle adjustment and positioning assembly and positioning structure, the angles of the first tube and the mounting seat at the end of the support rod are changed, and the mounting seat and the first tube are fixed by the positioning structure, thereby changing the unfolding angle between the fastening structure and the vascular sheath, enabling the vascular sheath to puncture different areas on the wrist and improving the usage efficiency of the entire vascular sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a structure of a vascular puncture sheath that is convenient to fix proposed by the utility model;

[0022] Figure 2 It is an unfolded view of the sheath tube and the inner core tube of a structure of a vascular puncture sheath that is convenient to fix proposed by the utility model;

[0023] Figure 3Schematic diagram of the fastening structure of a vascular puncture sheath structure that is easy to fix proposed by the present utility model;

[0024] Figure 4 Schematic diagram of the connection port and the elastic cloth structure of a vascular puncture sheath structure that is easy to fix proposed by the present utility model;

[0025] Figure 5 Schematic diagram of the magic mother sticker and magic son sticker structure of a vascular puncture sheath structure that is easy to fix proposed by the present utility model;

[0026] Figure 6 Schematic diagram of the positioning groove and U-shaped clamping plate structure of a vascular puncture sheath structure that is easy to fix proposed by the present utility model;

[0027] Figure 7 Schematic diagram of the installation groove and through groove structure of a vascular puncture sheath structure that is easy to fix proposed by the present utility model;

[0028] Figure 8 Schematic diagram of the moving sleeve block and handle rod structure of a vascular puncture sheath structure that is easy to fix proposed by the present utility model.

[0029] In the figure: 1. First tube; 2. Tube cap; 3. Second tube; 4. Support rod; 5. Cleaning tube; 6. Sheath tube; 7. Adjustment groove; 8. Switch valve; 9. Inner core tube; 10. Fastening structure; 1001. Movable seat; 1002. Reinforcing ring; 1003. First binding band; 1004. Second binding band; 1005. Through hole; 1006. First through groove; 1007. Second through groove; 1008. Binding strip; 11. Support platform; 12. Mounting seat; 13. Connection port; 14. Elastic cloth; 15. Magic mother sticker; 16. Magic son sticker; 17. Installation groove; 18. Positioning disc; 19. U-shaped clamping plate; 20. Moving sleeve block; 21. Through groove; 22. Spring; 23. Guide rod; 24. Positioning groove; 25. Handle rod. Detailed implementation manners

[0030] The technical solutions of this patent will be further described in detail below in conjunction with the specific implementation manners.

[0031] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation to this patent.

[0032] In the description of this patent, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this patent.

[0033] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "joined", "set" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0034] Referring to Figure 1-8 , a vascular puncture sheath structure convenient for fixation, comprising a first tube 1 and a second tube 3 fixed to one end of the first tube 1. One end of the second tube 3 is fixedly connected to a sheath tube 6, and channels are provided inside the sheath tube 6, inside the second tube 3, and inside the first tube 1. An inner core tube 9 is arranged in the channel, and a tube cap 2 is arranged at one end of the inner core tube 9. A cleaning tube 5 is fixedly connected to one side of the first tube 1, and a switch valve 8 is arranged at one end of the cleaning tube 5;

[0035] A support rod 4 is movably arranged on the top of the first tube 1, and an angle adjustment and positioning component is arranged between the end of the support rod 4 and the top of the first tube 1;

[0036] An adjustment groove 7 is formed at one end of the support rod 4, and a fastening structure 10 is movably arranged inside the adjustment groove 7. The fastening structure 10 is sleeved on the sheath tube 6.

[0037] Specifically, the angle adjustment and positioning assembly includes an installation groove 17 opened at the end of the support rod 4, and an installation seat 12 inserted into the installation groove 17 is fixed on the first tube 1. Installation holes are opened at both ends of the installation groove 17, and a rotating shaft rotatably connected to the inner wall of the installation hole is fixed on the installation seat 12. Positioning discs 18 are fixed at both ends of the rotating shaft. Equally spaced positioning grooves 24 are opened on the positioning discs 18. A positioning structure is arranged in the positioning grooves 24. The positioning structure includes a through groove 21 opened on the support rod 4, and a movable sleeve block 20 is movably arranged on the inner wall of the through groove 21. A guiding rod 23 passing through the movable sleeve block 20 is fixed between the inner walls at both ends of the through groove 21. A handle rod 25 is fixed at the top of the movable sleeve block 20, and a U-shaped clamping plate 19 inserted into the positioning groove 24 is fixed at the bottom of the movable sleeve block 20. A spring 22 is fixed between one side of the movable sleeve block 20 and the inner wall of one end of the through groove 21. By changing the angle between the first tube 1 and the installation seat 12 at the end of the support rod 4 and using the positioning structure to fix the installation seat 12 and the first tube 1, the unfolding angle between the fastening structure 10 and the blood vessel sheath is changed, so that the blood vessel sheath can puncture different areas of the wrist.

[0038] Specifically, the fastening structure 10 includes a movable seat 1001 movably arranged in the adjustment groove 7, and a reinforcement ring 1002 is fixedly installed at the bottom of the movable seat 1001. A support platform 11 is fixed at the bottom of the reinforcement ring 1002. A first through groove 1006 is opened on one side of the bottom of the reinforcement ring 1002 and on the movable seat 1001, and a second through groove 1007 is opened on the other side of the bottom of the reinforcement ring 1002 and on the movable seat 1001. A first binding band 1003 is inserted into the first through groove 1006, and a second binding band 1004 is inserted into the second through groove 1007. One end of the second binding band 1004 is fixed to one end of the first binding band 1003. Notch openings are opened at the top of one side of the first binding band 1003 and at the top of one side of the second binding band 1004, and a magic mother sticker 15 and a magic son sticker 16 are respectively fixed to the inner walls of the notch openings. The magic mother sticker 15 and the magic son sticker 16 are fixed to each other. A binding strip 1008 is fixed at the middle position of the inner wall of the first binding band 1003. The parts of the first binding band 1003 and the second binding band 1004 located inside the reinforcement ring 1002 are circular, and a through opening 1005 for the second binding band 1004 to pass through is opened on the first binding band 1003. By pulling the first binding band 1003 and the second binding band 1004 to move, the area of the connecting part of the first binding band 1003 and the second binding band 1004 is gradually reduced, and the first binding band 1003 and the second binding band 1004 are fixed by the cooperation of the magic mother sticker 15 and the magic son sticker 16, thereby forming a fixing structure for the blood vessel puncture sheath, replacing the method of using side-hole sewing needles in the prior art for fixing treatment, avoiding the pain caused to the user and the problem of cross-infection, and the height position of the fastening structure 10 can be adjusted in cooperation with the adjustment groove 7 to meet the usage requirements of different personnel.

[0039] Specifically, connection ports 13 which are equidistantly and annularly distributed are formed above the inner wall of the reinforcement ring 1002, and elastic cloth 14 is fixed between the inner walls of one ends of the connection ports 13 and the inner wall of the first restraint strap 1003. The elastic cloth 14 enables the adjusted first restraint strap 1003 and the second restraint strap 1004 to have a reset function.

[0040] Working principle: During use, medical staff sleeved the reinforcement ring 1002 in the fastening structure 10 on the wrist, pulled the first restraint strap 1003 and the second restraint strap 1004 to move, so that the area of the connection part of the first restraint strap 1003 and the second restraint strap 1004 gradually decreased, and the first restraint strap 1003 and the second restraint strap 1004 were fixed by the magic mother sticker 15 and the magic son sticker 16, thereby forming a fixing structure for the blood vessel puncture sheath. The height position of the fastening structure 10 can be adjusted in cooperation with the adjustment groove 7 to meet the use requirements of different personnel. During use, medical staff can also change the angles of the first tube 1 and the mounting seat 12 at the end of the support rod 4, and use the positioning structure to fix the mounting seat 12 and the first tube 1 after the angle adjustment, and change the unfolding angle between the fastening structure 10 and the blood vessel sheath, so that the blood vessel sheath can be punctured in different areas of the wrist, improving the use efficiency of the entire blood vessel sheath.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A vascular puncture sheath structure that is easy to fix, comprising a first tube (1) and a second tube (3) fixed to one end of the first tube (1), characterized in that: One end of the second tube (3) is fixedly connected to a sheath tube (6), and a channel is provided inside the sheath tube (6), inside the second tube (3) and inside the first tube (1), an inner core tube (9) is provided in the channel, and a tube cover cap (2) is provided at one end of the inner core tube (9); A support rod (4) is movably provided at the top of the first tube (1), and an angle adjustment positioning assembly is provided between the end of the support rod (4) and the top of the first tube (1); An adjustment slot (7) is provided at one end of the support rod (4), and a fastening structure (10) is movably provided inside the adjustment slot (7), and the fastening structure (10) is sleeved on the sheath tube (6).

2. A vascular puncture sheath structure that is easy to fix according to claim 1, characterized in that: The angle adjustment positioning assembly comprises a mounting groove (17) provided at the end of the support rod (4), and a mounting seat (12) inserted into the mounting groove (17) is fixed on the first tube (1), mounting holes are provided at both ends of the mounting groove (17), and a rotating shaft rotatably connected to the inner wall of the mounting hole is fixed on the mounting seat (12), and positioning plates (18) are fixed at both ends of the rotating shaft, and positioning grooves (24) distributed at equal distances are provided on the positioning plate (18), and a positioning structure is arranged in the positioning groove (24).

3. A vascular puncture sheath structure that is easy to fix according to claim 2, characterized in that: The positioning structure comprises a through slot (21) formed on a support rod (4), and a movable sleeve (20) is movably arranged on the inner wall of the through slot (21), a guide rod (23) passing through the movable sleeve (20) is fixed between the inner walls at both ends of the through slot (21), a handle rod (25) is fixed on the top of the movable sleeve (20), and a U-shaped clamping plate (19) inserted into the positioning slot (24) is fixed on the bottom of the movable sleeve (20), and a spring (22) is fixed between one side of the movable sleeve (20) and the inner wall at one end of the through slot (21).

4. A vascular puncture sheath structure that is easy to fix according to claim 3, characterized in that: The fastening structure (10) comprises a movable seat (1001) movably arranged in an adjustment groove (7), and a reinforcement ring (1002) is fixedly installed at the bottom of the movable seat (1001), and a support platform (11) is fixed at the bottom of the reinforcement ring (1002), a first through groove (1006) is opened on one side of the bottom of the reinforcement ring (1002) and the movable seat (1001), and a second through groove (1007) is opened on the other side of the bottom of the reinforcement ring (1002) and the movable seat (1001), a first restraining belt (1003) is inserted into the interior of the first through groove (1006), and a second restraining belt (1004) is inserted into the interior of the second through groove (1007), and one end of the second restraining belt (1004) is fixed to one end of the first restraining belt (1003).

5. A vascular puncture sheath structure that is easy to fix according to claim 4, characterized in that: A slot is provided at the top of one side of the first restraint belt (1003) and the top of one side of the second restraint belt (1004), and a Velcro tape (15) and a Velcro tape (16) are fixed to the inner walls of the slots respectively. The Velcro tape (15) and the Velcro tape (16) are fixed to each other, and a restraint strip (1008) is fixed to the middle position of the inner wall of the first restraint belt (1003).

6. A vascular puncture sheath structure that is easy to fix according to claim 5, characterized in that: The parts of the first restraining belt (1003) and the second restraining belt (1004) located inside the reinforcement ring (1002) are circular in shape, and the first restraining belt (1003) is provided with a hole (1005) for the second restraining belt (1004) to pass through.

7. A vascular puncture sheath structure that is easy to fix according to claim 6, characterized in that: The upper part of the inner wall of the reinforcement ring (1002) is provided with connection openings (13) distributed in an annular shape at equal distances, and an elastic cloth (14) is fixed between the inner wall of one end of the connection opening (13) and the inner wall of the first restraining belt (1003).

8. The vascular puncture sheath structure that is easy to fix according to claim 1, characterized in that: A cleaning pipe (5) is fixedly connected to one side of the first tube (1), and a switch valve (8) is provided at one end of the cleaning pipe (5).

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