Tearable and adjustable interventional micro-catheter

Abstract

The utility model discloses a tearable and adjustable interventional micro-catheter, which comprises a catheter, and further comprises a tensioning component for controlling the bending of the head of the catheter; the tensioning assembly comprises a pull rope, a bolt and an operation pipe, the guide pipe is fixedly connected to the operation pipe, the bolt is fixedly connected into the guide pipe, one end of the pull rope is fixedly connected to the bolt, the other end of the pull rope is connected with the operation pipe through a through hole in the operation pipe, a transmission rod is rotationally connected into the operation pipe, and the transmission rod is connected with the guide pipe. The transmission rod is fixedly connected with a sleeve, and the sleeve is fixedly connected with a pull rope; the bending direction of the microcatheter is convenient to adjust.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical auxiliary devices, and in particular relates to a tearable and adjustable micro-catheter for intervention. Background Art

[0002] Neurological and cardiovascular surgical instruments microcatheter is a miniature catheter device used in neurological and cardiovascular surgery. Microcatheters are usually made of soft materials, have a small outer diameter and flexible bendability, and can easily pass through narrow blood vessels or nerve channels to reduce surgical trauma. However, after entering the human blood vessels, it is not easy to adjust the bending direction and thus the forward direction. A structure that facilitates the adjustment of the bending direction of the catheter is now proposed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a tearable and adjustable interventional microcatheter to solve the above-mentioned problems.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a tearable and adjustable interventional microcatheter, comprising a catheter, and also comprising: a tensioning assembly, used to control the bending of the head of the catheter; the tensioning assembly comprises a pull rope, a bolt and an operating tube, the catheter is fixedly connected to the operating tube, a bolt is fixedly connected in the catheter, one end of the pull rope is fixedly connected to the bolt, and the other end of the pull rope is connected to the operating tube through a through hole in the operating tube, a transmission rod is rotatably connected in the operating tube, a sleeve is fixedly connected to the transmission rod, and the sleeve is fixedly connected to the pull rope.

[0005] Beneficial Effects

[0006] The utility model provides a tearable and adjustable interventional microcatheter, which has the following beneficial effects compared with the prior art:

[0007] The relevant technicians manually rotate the lever, so that the lever drives the screw rod fixedly connected to it to start rotating, and the sliding cylinder threaded on the screw rod starts to move linearly along the sliding rail at the connection between it and the base, so that the sliding cylinder starts to drive the top rod hinged to it to rotate synchronously, and the top rod starts to push the support rod hinged to it, so that the support rod drives the bottom support fixedly connected to its top to rotate synchronously, and the bottom support drives the ring sleeve fixedly connected to it to start rotating, so that the ring sleeve starts to drive the operating tube fixedly connected to it to rotate synchronously, so as to adjust the insertion angle of the catheter. After the adjustment is completed, the relevant technicians insert the catheter into the patient's body. When the catheter needs to bend and change direction, the relevant technicians manually turn the knob to drive the transmission rod to start rotating, so that the sleeve fixedly connected to the transmission rod rotates synchronously, so that the sleeve starts to pull the pull rope, so that the pull rope pulls the top of the catheter to bend the head of the catheter. When the catheter needs to be bent to the other side, the relevant technicians manually turn the knob on the other side to adjust the bending direction of the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0009] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0010] Figure 3 It is an enlarged schematic diagram of the structure of the utility model.

[0011] Notes on the figure numbers: catheter 101, tensioning assembly 2, pull rope 201, bolt 202, operating tube 203, transmission rod 204, sleeve 205, knob 206, ring sleeve 207, base 208, support rod 209, push rod 301, base 302, screw rod 303, slide cylinder 304, and lever 305. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0013] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0014] See also Figures 1 to 3 , provided in one embodiment of the utility model, is a tearable and adjustable interventional microcatheter, comprising a catheter 101, and further comprising:

[0015] A tensioning assembly 2, used to control the bending of the head of the catheter 101;

[0016] The tensioning assembly 2 includes a pull rope 201, a bolt 202 and an operating tube 203. The catheter 101 is fixedly connected to the operating tube 203. The bolt 202 is fixedly connected to the catheter 101. One end of the pull rope 201 is fixedly connected to the bolt 202, and the other end of the pull rope 201 is connected to the operating tube 203 through a through hole on the operating tube 203.

[0017] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific catheter 101 described in the above embodiments. For example, a sealing ring is provided at the recessed hole where the pull rope 201 is connected to the catheter 101. The purpose of this setting is to increase the sealing effect of the device in this way.

[0018] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific plug 202 described in the above embodiments. For example, the plug 202 is detachably fixedly connected to the catheter 101. The purpose of this arrangement is to facilitate the adjustment of the position of the plug 202 in this way, thereby adjusting the bending amplitude of the head of the catheter 101.

[0019] Specifically, a transmission rod 204 is rotatably connected to the operating tube 203 , a sleeve 205 is fixedly connected to the transmission rod 204 , and the sleeve 205 is fixedly connected to the pull rope 201 .

[0020] For the above examples, those skilled in the art should be aware that when implementing the above technical solution, they are not limited to the specific sleeve 205 described in the above embodiment. For example, the sleeve 205 is provided with a groove. The purpose of this setting is that when the sleeve 205 starts to wind the pull rope 201, the pull rope 201 is limited by the groove to prevent it from sliding.

[0021] Specifically, a knob 206 is fixedly connected to the transmission rod 204 , and an anti-slip stripe is provided on the knob 206 .

[0022] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific knob 206 described in the above embodiments. For example, a hydrophobic anti-slip rubber ring may be provided on the knob 206. The purpose of this setting is to prevent the operator from having water on his hands, which would make it impossible to turn the knob 206.

[0023] Specifically, the two sides of the operating tube 203 are detachably and fixedly connected with ring sleeves 207 , and the bottom of the ring sleeve 207 is fixedly connected with a base 208 .

[0024] For the above examples, those skilled in the art should be aware that when implementing the above technical solution, they are not limited to the specific ring sleeve 207 described in the above embodiment. For example, the ring sleeve 207 can be a soft ring sleeve. The purpose of this setting is that the soft ring sleeve has good deformation ability, which is convenient for fixing it on the operating tube 203.

[0025] Specifically, a support rod 209 is fixedly connected to the bottom of the base 208 , and the other end of the support rod 209 is hinged on the base 302 .

[0026] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific base 302 described in the above embodiments. For example, the base 302 is provided with a groove, and the length of the groove is the same as that of the support rod 209. The purpose of this setting is to facilitate the control of the support rod 209 to be extended into the groove of the base 302, thereby making the device easy to carry.

[0027] Specifically, the support rod 209 is hinged to the top rod 301 through a hinge seat in the middle thereof, and the other end of the top rod 301 is hinged to a slide cylinder 304 , and the slide cylinder 304 is slidably connected to the base 302 through a slide rail in the base 302 .

[0028] For the above examples, those skilled in the art should be aware that when implementing the above technical solution, they are not limited to the specific top rod 301 described in the above embodiment. For example, the top rod 301 should be made of an integrated material. The purpose of this setting is to prevent it from breaking under stress in this way.

[0029] Specifically, the slide cylinder 304 is threadedly connected to the screw rod 303 , the screw rod 303 is rotatably connected to the base 302 , and one end of the screw rod 303 is fixedly connected to a lever 305 .

[0030] For the above examples, those skilled in the art should be aware that when implementing the above technical solutions, they are not limited to the specific screw rod 303 described in the above embodiments. For example, the screw rod 303 may be a reciprocating screw rod. The purpose of this arrangement is that when the slide cylinder 304 threadedly connected thereto moves to one end, the movement direction of the slide cylinder 304 can be quickly changed by continuing to control the screw rod 303 to rotate in the same direction.

[0031] In the embodiment of the utility model, the relevant technicians manually rotate the lever 305, so that the lever 305 drives the screw rod 303 fixedly connected thereto to start rotating, so that the slide cylinder 304 threadedly connected to the screw rod 303 starts to move linearly along the slide rail at the connection between it and the base 302, so that the slide cylinder 304 starts to drive the top rod 301 hinged thereto to rotate synchronously, so that the top rod 301 starts to push the support rod 209 hinged thereto, so that the support rod 209 drives the bottom bracket 208 fixedly connected to its top to rotate synchronously, so that the bottom bracket 208 drives the ring sleeve 207 fixedly connected thereto to start rotating, so that the ring sleeve 207 starts to drive the operating tube fixedly connected thereto 203 rotates synchronously to adjust the insertion angle of the catheter 101. After the adjustment is completed, the relevant technician inserts the catheter 101 into the patient's body. When the catheter 101 needs to bend and change direction, the relevant technician manually rotates the knob 206 to drive the transmission rod 204 to start rotating, so that the sleeve 205 fixedly connected to the transmission rod 204 rotates synchronously, so that the sleeve 205 starts to pull the pull rope 201, so that the pull rope 201 pulls the top of the catheter 101 to bend the head of the catheter 101. When the catheter 101 needs to bend to the other side, the relevant technician manually rotates the knob 206 on the other side to adjust the bending direction of the catheter 101.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tearable and adjustable interventional microcatheter, comprising a catheter (101), characterized in that: Also includes: A tensioning assembly (2) for controlling the bending of the head of the catheter (101); The tensioning assembly (2) comprises a pull rope (201), a bolt (202) and an operating tube (203); the catheter (101) is fixedly connected to the operating tube (203); the bolt (202) is fixedly connected to the catheter (101); one end of the pull rope (201) is fixedly connected to the bolt (202); and the other end of the pull rope (201) is connected to the operating tube (203) via a through hole on the operating tube (203).

2. The tearable and adjustable interventional microcatheter according to claim 1, characterized in that: A transmission rod (204) is rotatably connected to the operating tube (203), a sleeve (205) is fixedly connected to the transmission rod (204), and the sleeve (205) is fixedly connected to the pull rope (201).

3. The tearable and adjustable interventional microcatheter according to claim 2, characterized in that: The transmission rod (204) is fixedly connected to a knob (206), and the knob (206) is provided with anti-slip stripes.

4. The tearable and adjustable interventional microcatheter according to claim 1, characterized in that: The operating tube (203) has ring sleeves (207) detachably and fixedly connected to both sides thereof, and a bottom support (208) is fixedly connected to the bottom of the ring sleeve (207).

5. The tearable and adjustable interventional microcatheter according to claim 4, characterized in that: The bottom of the base (208) is fixedly connected to a support rod (209), and the other end of the support rod (209) is hinged on the base (302).

6. The tearable and adjustable interventional microcatheter according to claim 5, characterized in that: The support rod (209) is hinged to the top rod (301) through a hinge seat in the middle thereof, and the other end of the top rod (301) is hinged to a slide cylinder (304), and the slide cylinder (304) is slidably connected to the base (302) through a slide rail in the base (302).

7. The tearable and adjustable interventional microcatheter according to claim 6, characterized in that: The slide cylinder (304) is threadedly connected to the screw rod (303), the screw rod (303) is rotatably connected to the base (302), and one end of the screw rod (303) is fixedly connected to a lever (305).

8. The tearable and adjustable interventional microcatheter according to claim 3, characterized in that: The knob (206) may be provided with a hydrophobic anti-slip rubber ring.

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