Catheter sheath for cardiovascular intervention

Abstract

The utility model relates to the technical field of medical catheter sheaths, and discloses a catheter sheath for cardiovascular intervention, which comprises a sleeve shell, the inner wall of the sleeve shell is provided with a catheter channel, the top end of the sleeve shell is fixedly connected with a top connecting ring, the lower surface of a rotating ring is fixedly connected with a pressing ring, and the outer wall of the pressing ring is provided with an outer sleeve. The inner wall of the rotating ring is slidably connected to the outer wall of the clamping plate, the outer wall of the pressing ring is slidably connected to the outer wall of the clamping plate, a sealing cover is fixedly connected to the upper surface of the sealing plug, the lower surface of the sealing cover is attached to the upper surface of the top connecting ring, and a sealing cover is fixedly connected to the upper surface of the sealing plug. And a shifting assembly is arranged at the top end of the sealing cover. According to the catheter sheath, when the rotating ring and the pressing ring are driven by the sleeve shell to rotate on the outer wall of the threaded block, the clamping plates can be driven to clamp the catheter sheath body inwards through rotation of the pressing ring and the rotating ring, and the catheter sheath body can be rapidly replaced according to the thickness of a blood vessel.

Description

Technical Field

[0001] The utility model relates to a medical catheter sheath, in particular to a catheter sheath used for cardiovascular intervention. Background Art

[0002] During cardiovascular interventional surgery, a catheter sheath is a device used to be inserted into a blood vessel to guide therapeutic devices (such as guidewires, balloon catheters, stents, etc.). The catheter sheath is inserted through the blood vessel to provide a channel for the guidewire and other therapeutic devices, allowing doctors to guide these devices to the area that needs treatment, such as heart vessels or arteries. The catheter sheath is designed to minimize damage to the blood vessel wall and ensure that the blood vessel is unobstructed so that doctors can perform interventional treatment smoothly and minimize possible complications. The catheter sheath provides a certain degree of structural support inside the blood vessel, which helps to stabilize the position of the therapeutic device and maintain the shape of the blood vessel.

[0003] After searching, a catheter sheath is disclosed in the announcement number: CN211132605U, including a sheath tube, a sheath and a fixing belt. The sheath is fixedly connected to the sheath tube, and a hollow channel is provided in the sheath, and the hollow channel is communicated with the inside of the sheath tube. The outer peripheral surface of the sheath is also extended with a side ear, and a through fixing hole is provided on the side ear. One end of the fixing belt has a plurality of adjustment holes, and the other end has a lug, and the fixing belt is connected to the sheath through the cooperation of the fixing hole and the adjustment hole and the lug, and the fixing belt is used to be worn on the wrist.

[0004] However, the catheter sheath cannot be replaced during use, which may be due to the fact that the blood vessel is too small or too large, resulting in the device being unable to be used during use or being unable to accurately remove the obstruction in the blood vessel when used. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a catheter sheath for cardiovascular intervention, aiming to improve the problem that the device cannot be used during use or cannot accurately remove blockages in the blood vessels due to the blood vessels being too small or too large.

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

[0007] A catheter sheath for cardiovascular intervention, comprising a shell, the inner wall of the shell is provided with a catheter channel, the top of the shell is fixedly connected to a top connecting ring, the inner wall of the shell is threadedly connected to a threaded block, the bottom end of the threaded block is fixedly connected to a splint, the bottom end of the shell is fixedly connected to a swivel, the lower surface of the swivel is fixedly connected to a pressure ring, the outer wall of the pressure ring is provided with a jacket, the inner wall of the swivel is slidably connected to the outer wall of the splint, the outer wall of the pressure ring is slidably connected to the outer wall of the splint, the inner wall of the top connecting ring is slidably connected to a sealing plug, the upper surface of the sealing plug is fixedly connected to a sealing cover, the lower surface of the sealing cover is fitted with the upper surface of the top connecting ring, the upper surface of the sealing plug is fixedly connected to the sealing cover, and the top of the sealing cover is provided with a toggle assembly.

[0008] Preferably, the toggle assembly comprises a vertical rod, the bottom end of the vertical rod is fixedly connected to the upper surface of the sealing cover, and the top end of the vertical rod is fixedly connected to a pulling plate.

[0009] Preferably, the inner wall of the clamp is slidably connected to the catheter sheath body, and the outer wall of the catheter sheath body is slidably connected to the inner wall of the pressure ring.

[0010] Preferably, a concave head is fixedly connected to the bottom end of the catheter sheath body, and a connecting block is fixedly connected to the outer wall of the concave head.

[0011] Preferably, a protective ring is fixedly connected to the outer wall of the connecting block, a sliding bead is fixedly connected to the outer wall of the protective ring, and a catheter piercing port is provided at the bottom end of the concave head.

[0012] Preferably, the outer wall of the catheter sheath body is slidably connected with a dustproof placement rod, and the inner wall of the dustproof placement rod is provided with a support inner wall.

[0013] Preferably, the outer wall of the catheter sheath body is slidably connected to the inner wall of the pillar inner wall, and the outer wall of the concave head is slidably connected to the inner wall of the pillar inner wall.

[0014] Preferably, the outer wall of the catheter puncture port is slidably connected to the inner wall of the pillar inner wall, the outer wall of the sliding ball is slidably connected to the inner wall of the catheter sheath body, and the lower surface of the dustproof placement rod is fixedly connected to a bottom support block.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, when the outer wall of the threaded block is rotated by driving the swivel ring and the pressure ring through the sleeve, the rotation of the pressure ring and the swivel ring can drive the clamp plate to clamp the catheter sheath body inward, so that the catheter sheath body can be quickly replaced according to the thickness of the blood vessel during use.

[0017] 2. In the utility model, the concave head and the catheter insertion port can better penetrate into the blood vessel during use, and the connecting block, the protective ring and the sliding bead can better avoid scratching the inner wall of the blood vessel during use.

[0018] 3. In the utility model, the catheter channel can be sealed by the sealing plug and the sealing cover during use. The catheter sheath body can be better placed by the dustproof placement rod and the bottom support block during use to prevent dust from entering the interior of the catheter channel and contaminating the inner wall of the catheter channel when the catheter sheath body is placed. The bottom support block can better support the catheter sheath body when it is placed and make it more convenient to take and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a stereoscopic diagram of a catheter sheath for cardiovascular intervention proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of a casing of a catheter sheath for cardiovascular intervention proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of a sliding bead of a catheter sheath for cardiovascular intervention proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of a dustproof placement rod of a catheter sheath for cardiovascular intervention proposed by the utility model.

[0023] Legend:

[0024] 1. Shell; 2. Catheter channel; 3. Top connecting ring; 4. Sealing plug; 5. Sealing cover; 6. Threaded block; 7. Clamp; 8. Swivel; 9. Pressing ring; 10. Outer sleeve; 11. Catheter sheath body; 12. Recessed head; 13. Connecting block; 14. Protective ring; 15. Sliding ball; 16. Catheter piercing entrance; 17. Inner wall of pillar; 18. Dustproof placement rod; 19. Bottom support block; 20. Vertical pole; 21. Pull plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings of the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-Figure 2The utility model provides an embodiment: a catheter sheath for cardiovascular intervention, comprising a casing 1, the inner wall of the casing 1 is provided with a catheter channel 2, the top of the casing 1 is fixedly connected with a top connecting ring 3, the inner wall of the casing 1 is threadedly connected with a thread block 6, the bottom end of the thread block 6 is fixedly connected with a clamping plate 7, the bottom end of the casing 1 is fixedly connected with a swivel 8, the lower surface of the swivel 8 is fixedly connected with a pressure ring 9, the outer wall of the pressure ring 9 is provided with a jacket 10, the inner wall of the swivel 8 is slidably connected to the outer surface of the clamping plate 7 The outer wall of the pressure ring 9 is slidably connected to the outer wall of the clamping plate 7, the inner wall of the top connecting ring 3 is slidably connected with a sealing plug 4, the upper surface of the sealing plug 4 is fixedly connected with a sealing cover 5, the lower surface of the sealing cover 5 is in contact with the upper surface of the top connecting ring 3, the upper surface of the sealing plug 4 is fixedly connected with the sealing cover 5, and the top of the sealing cover 5 is provided with a toggle assembly; the toggle assembly includes a vertical rod 20, the bottom end of the vertical rod 20 is fixedly connected to the upper surface of the sealing cover 5, and the top end of the vertical rod 20 is fixedly connected with a pulling plate 21;

[0027] Specifically, by inserting the catheter sheath body 11 into the inner wall of the clamping plate 7, the rotating housing 1 drives the swivel ring 8 and the pressure ring 9, and the outer sleeve 10 rotates inward through the threaded block 6. At this time, the clamping plate 7 can be squeezed by the pressure ring 9 to drive the clamping plate 7 to clamp inward, which can achieve the effect of quickly fixing the catheter sheath body 11, and the catheter sheath body 11 can be quickly replaced according to the usage and the size of the blood vessel. The sealing cover 5 drives the sealing plug 4 to be inserted into the inner wall of the top connecting ring 3 to seal the catheter channel 2 of the housing 1 to prevent dust from entering and polluting the inner wall of the catheter channel 2, and to prevent dust or other objects from being sent into the blood vessel to cause side effects. The sealing cover 5 and the sealing plug 4 can be quickly pulled out through the vertical rod 20 and the pulling plate 21.

[0028] Reference Figure 2-Figure 3 The inner wall of the splint 7 is slidably connected with a catheter sheath body 11, and the outer wall of the catheter sheath body 11 is slidably connected to the inner wall of the pressure ring 9; the bottom end of the catheter sheath body 11 is fixedly connected with a recessed head 12, and the outer wall of the recessed head 12 is fixedly connected with a connecting block 13; the outer wall of the connecting block 13 is fixedly connected with a protective ring 14, and the outer wall of the protective ring 14 is fixedly connected with a sliding bead 15, and the bottom end of the recessed head 12 is provided with a catheter piercing port 16;

[0029] Specifically, the clamping plate 7 can quickly fix the catheter sheath body 11, and the concave head 12, the connecting block 13, the protective ring 14 and the sliding ball 15 can protect the blood vessel when the catheter puncture port 16 enters the blood vessel.

[0030] Reference Figure 2-Figure 4The outer wall of the catheter sheath body 11 is slidably connected with a dustproof placement rod 18, and the inner wall of the dustproof placement rod 18 is provided with a support inner wall 17; the outer wall of the catheter sheath body 11 is slidably connected to the inner wall of the support inner wall 17, and the outer wall of the recessed head 12 is slidably connected to the inner wall of the support inner wall 17; the outer wall of the catheter puncture port 16 is slidably connected to the inner wall of the support inner wall 17, the outer wall of the sliding ball 15 is slidably connected to the inner wall of the catheter sheath body 11, and the lower surface of the dustproof placement rod 18 is fixedly connected with a bottom support block 19;

[0031] Specifically, when the catheter sheath body 11 and the catheter insertion port 16, the sliding ball 15 and the connecting block 13 slide on the inner wall of the pillar inner wall 17, the catheter sheath body 11 can be easily placed and taken out, and the dust-proof placement rod 18 and the bottom support block 19 can better support the catheter sheath body 11.

[0032] Working principle: When the catheter sheath is needed, the catheter sheath body 11 is inserted into the inner wall of the splint 7, and the rotating housing 1 drives the swivel 8 and the pressure ring 9, and the outer sleeve 10 rotates inward through the threaded block 6. At this time, the pressure ring 9 can squeeze the splint 7 and drive the splint 7 to clamp inward, which can achieve the effect of quickly fixing the catheter sheath body 11. During use, the catheter sheath body 11 can be quickly replaced according to the usage conditions and the size of the blood vessel. During use, the sealing cover 5 drives the sealing plug 4 to be inserted into the inner wall of the top connecting ring 3, which can seal the catheter channel 2 of the housing 1 to prevent dust from entering and polluting the inner wall of the catheter channel 2, and prevent dust or other objects from being sent into the blood vessel during use to cause side effects. During use, the vertical rod 20 and the pull plate are used. 21 can quickly pull out the sealing cover 5 and the sealing plug 4. During use, the catheter sheath body 11 and the recessed head 12 are inserted into the inner wall 17 of the pillar, which can achieve the effect of quick placement and removal. During use, the concave head 12 and the catheter puncture port 16 can pierce the blood vessel. When the sliding ball 15 is driven to slide inside the blood vessel by the protective ring 14 outside the connecting block 13, the inner wall of the blood vessel can be protected. The inner wall of the blood vessel can be scratched by placing a needle or catheter puncture port 16, which can better protect the blood vessel. During use, the dustproof placement rod 18 can better support the catheter sheath body 11, and then the dustproof placement rod 18 is firmly fixed on the table through the bottom support block 19, so that it can be better taken and placed during use. During use, the device not only achieves When the outer wall of the threaded block 6 is rotated by driving the swivel ring 8 and the pressure ring 9 through the sleeve 1, the rotation of the pressure ring 9 and the swivel ring 8 can drive the clamp 7 to clamp the catheter sheath body 11 inward. During use, the catheter sheath body 11 can be quickly replaced according to the thickness of the blood vessel. The connecting block 13, the protective ring 14, and the sliding ball 15 can better avoid scratching the inner wall of the blood vessel during use. The dust-proof placement rod 18 and the bottom support block 19 can better place the catheter sheath body 11 during use to prevent dust from entering the interior of the catheter channel 2 and contaminating the inner wall of the catheter channel 2 when the catheter sheath body 11 is placed. The bottom support block 19 can better support the catheter sheath body 11 when it is placed and make it more convenient to take and use.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A catheter sheath for cardiovascular intervention, comprising a sheath (1), characterized in that: The inner wall of the casing (1) is provided with a conduit channel (2), the top end of the casing (1) is fixedly connected with a top connecting ring (3), the inner wall of the casing (1) is threadedly connected with a threaded block (6), the bottom end of the threaded block (6) is fixedly connected with a clamping plate (7), the bottom end of the casing (1) is fixedly connected with a swivel (8), the lower surface of the swivel (8) is fixedly connected with a pressure ring (9), the outer wall of the pressure ring (9) is provided with a jacket (10), the swivel (8) is fixedly connected with a pressure ring (9), the outer wall of the pressure ring (9) is provided with a sleeve (10), and the inner wall of the swivel (8) is fixedly connected with a threaded block (6). The inner wall is slidably connected to the outer wall of the clamp (7), the outer wall of the pressure ring (9) is slidably connected to the outer wall of the clamp (7), the inner wall of the top connecting ring (3) is slidably connected to a sealing plug (4), the upper surface of the sealing plug (4) is fixedly connected to a sealing cover (5), the lower surface of the sealing cover (5) is in contact with the upper surface of the top connecting ring (3), the upper surface of the sealing plug (4) is fixedly connected to the sealing cover (5), and a toggle assembly is provided at the top of the sealing cover (5).

2. A catheter sheath for cardiovascular intervention according to claim 1, characterized in that: The toggle assembly comprises a vertical rod (20), the bottom end of the vertical rod (20) is fixedly connected to the upper surface of the sealing cover (5), and the top end of the vertical rod (20) is fixedly connected to a pulling plate (21).

3. A catheter sheath for cardiovascular intervention according to claim 2, characterized in that: The inner wall of the clamping plate (7) is slidably connected to a catheter sheath body (11), and the outer wall of the catheter sheath body (11) is slidably connected to the inner wall of the pressure ring (9).

4. A catheter sheath for cardiovascular intervention according to claim 3, characterized in that: The bottom end of the catheter sheath body (11) is fixedly connected to a concave head (12), and the outer wall of the concave head (12) is fixedly connected to a connecting block (13).

5. A catheter sheath for cardiovascular intervention according to claim 4, characterized in that: The outer wall of the connection block (13) is fixedly connected with a protective ring (14), the outer wall of the protective ring (14) is fixedly connected with a sliding bead (15), and the bottom end of the concave head (12) is provided with a catheter piercing opening (16).

6. A catheter sheath for cardiovascular intervention according to claim 5, characterized in that: The outer wall of the catheter sheath body (11) is slidably connected with a dustproof placement rod (18), and the inner wall of the dustproof placement rod (18) is provided with a support inner wall (17).

7. A catheter sheath for cardiovascular intervention according to claim 6, characterized in that: The outer wall of the catheter sheath body (11) is slidably connected to the inner wall of the pillar inner wall (17), and the outer wall of the concave head (12) is slidably connected to the inner wall of the pillar inner wall (17).

8. A catheter sheath for cardiovascular intervention according to claim 7, characterized in that: The outer wall of the catheter puncture port (16) is slidably connected to the inner wall of the pillar inner wall (17), the outer wall of the sliding ball (15) is slidably connected to the inner wall of the catheter sheath body (11), and the lower surface of the dustproof placement rod (18) is fixedly connected to a bottom support block (19).

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