An interventional surgery sheath fixing device

Abstract

The present invention relates to an interventional surgical outer sheath fixing device, comprising a gantry-shaped fixing frame, the bottom of the first end of which is fixed to the slide rail of the catheter bed through a fixing portion; the length of the second end is less than the length of the first end, and the second end is provided with a connecting portion; and a clamping portion, the clamping portion being a disposable sterile consumable, the top of which is plug-in connected to the high and low knob connecting portion, the clamping end of which faces downward, and is used to continuously clamp the outer sheath during surgery. The present invention adopts a gantry-shaped fixing frame, and uses the clamping portion as a consumable to continuously clamp the outer sheath during surgery, fix the outer sheath throughout the surgery, avoid the outer sheath from slipping and bleeding, solve the problem that the doctor must hold the outer sheath by hand, and improve the safety and efficiency of the surgery. The consumable is recycled after each surgery and connected to the fixing frame by plug-in, which facilitates the installation and removal of disposable consumables, and effectively solves the problem of cumbersome device disinfection in actual clinical practice.

Description

Technical Field

[0001] The present invention relates to the technical field of minimally invasive interventional surgery, and more particularly to an outer sheath fixing device for interventional surgery. Background Art

[0002] Minimally invasive cardiovascular interventional therapy is the primary treatment for cardiovascular and cerebrovascular diseases. Compared to traditional surgical procedures, it offers significant advantages such as smaller incisions and shorter postoperative recovery times. Cardiovascular interventional surgery involves the manual insertion of devices such as catheters, guidewires, and stents into the patient's body. The first step in the interventional procedure is the placement of a sheath into a blood vessel, typically the femoral artery in the thigh or the radial artery in the wrist. The doctor makes a small incision in the patient's thigh or wrist and places the sheath into the corresponding artery. This placement establishes a pathway through which the catheter and guidewire can be passed into the affected area. The placement of the sheath directly impacts the outcome of the procedure. During surgery, the sheath and the patient must remain relatively still to ensure the integrity and patency of the pathway.

[0003] However, the outer sheath can become loose or misplaced during surgery, causing bleeding at the incision site. When injecting contrast agents, especially in neurointerventional procedures, high-pressure syringes are often used, which can cause the outer sheath to react, shift, or even fall off, directly impacting the procedure. During surgery, the surgeon must manually hold the outer sheath to prevent movement. This requires the surgeon to control the catheter guidewire while simultaneously maneuvering the outer sheath into the blood vessel, severely impacting surgical efficiency and effectiveness.

[0004] Therefore, how to provide an interventional surgical sheath fixation device is a problem that those skilled in the art urgently need to solve. Summary of the Invention

[0005] Therefore, the purpose of the present invention is to provide an interventional surgery sheath fixing device to solve at least one of the above problems.

[0006] The present invention provides an interventional surgery sheath fixing device, comprising:

[0007] A fixing frame, the fixing frame being gantry-shaped, with the bottom of the first end being fixed to the slide rail of the catheter bed via a fixing portion; the length of the second end being shorter than the length of the first end, and the second end having a connecting portion;

[0008] And a clamping part, which is a disposable sterile consumable, the top of which is plug-in connected to the connecting part, and the clamping end of which faces downward, is used to continuously clamp the outer sheath during surgery.

[0009] Through the above technical solution, it can be seen that compared with the prior art, the present invention provides an interventional surgical sheath fixing device, which adopts a gantry-shaped fixing frame, which is fixed to the catheter bed slide rail through the first end of the fixing frame, and the second end is plugged with a disposable sterile clamping part as a consumable, which continuously clamps the outer sheath during the operation. Thus, the outer sheath is fixed throughout the operation, avoiding the slippage and bleeding of the outer sheath, solving the operation that the doctor must hold the outer sheath by hand, freeing up one hand of the doctor, making it easier for the doctor to operate the guidewire catheter, and improving the safety and efficiency of the operation. The consumables are recycled after each operation and connected to the fixing frame for easy installation and removal of disposable consumables, effectively solving the problem of cumbersome device disinfection in actual clinical practice.

[0010] Furthermore, the first end of the fixing frame is a bracket, and the bracket is a vertically arranged rod, the top of which is connected to the second end of the fixing frame, and the bottom of which is provided with a slide rail matching groove.

[0011] Furthermore, the notch of the slide rail matching groove faces the slide rail side, the top of the notch has a stopper, and the bottom has a first threaded hole, and the fixing part is matched in the first threaded hole to further clamp the slide rail.

[0012] In the first step, the fixing part includes an extrusion plate, a screw and an operating handle. The extrusion plate abuts or separates from the slide rail, and its bottom is connected to the screw. The screw rotates in conjunction with the bottom thread of the first end of the fixing frame, and the bottom of the screw is connected to the operating handle.

[0013] Furthermore, the upper portion of the bracket is rotatably connected to a horizontal rod, a middle arm is slidably connected to the horizontal rod, an end of the middle arm away from the horizontal rod is vertically connected to a cantilever, and a distal end of the cantilever is connected to the clamping portion.

[0014] Furthermore, the bottom of the middle arm has a slide groove, and a first slider is fixed on the inner wall of the slide groove. The first slider slides on and is fixed on the first linear guide rail on the horizontal rod through a driving part.

[0015] Furthermore, the driving part has a first motor bracket and a first screw motor, the top end of the middle arm away from the horizontal rod has a second threaded hole that cooperates with the screw of the first screw motor, the first screw motor is fixed to the horizontal rod through the first motor bracket, the first screw motor is connected to the front and rear knobs, and the front and rear knobs are fixed to the side wall of the cantilever.

[0016] Furthermore, a second linear guide is fixed to the inner side of the cantilever, a second slider slides on the second linear guide, the second slider is fixedly connected to a Z-shaped connector arranged parallel to the cantilever, the top plate of the Z-shaped connector has a third threaded hole that cooperates with the screw of the second screw motor, the second screw motor is fixed to the inner side of the cantilever through a second motor bracket, and the second screw motor is connected to the height knob; the bottom of the Z-shaped connector is connected to the connecting part.

[0017] Furthermore, the connecting portion is a downwardly protruding connecting block, and the connecting block is plugged into the top of the clamping portion.

[0018] Furthermore, the clamping part includes a first clamping end and a second clamping end that are cross-hinged, the end of the first clamping end is a handle, the end of the second clamping end is a connecting groove that is plugged into the connecting part, the connecting part is an electromagnet, and the connecting groove has an iron sheet that is magnetically connected to the electromagnet; the first clamping end and the second clamping end have silicone pads on the clamping side. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0020] Figure 1 The accompanying drawing is a schematic structural diagram of an interventional surgical sheath fixing device provided by the present invention;

[0021] Figure 2 The accompanying drawing shows a schematic structural diagram of the fixing frame;

[0022] Figure 3 The attached picture is Figure 2 Exploded diagram;

[0023] Figure 4 The accompanying drawings show a schematic structural diagram of the clamping portion. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0026] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0027] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0028] There are currently the following problems with the fixation of the outer sheath in interventional surgery: the outer sheath may become loose or dislocated during surgery, causing bleeding at the incision site in the human body; when creating contrast agents, especially in neurointerventional surgery, high-pressure syringes are often used for injection, which will cause the outer sheath to be subjected to reaction force, resulting in displacement and sheath sheath sheath falling off, directly affecting the progress of the operation; during the operation, the doctor must rely on manual control to prevent the outer sheath end from moving during the operation. The doctor needs to control the catheter guidewire to enter the blood vessel while holding the outer sheath, which seriously affects the efficiency and effect of the operation.

[0029] Therefore, the embodiment of the present invention discloses an interventional surgery sheath fixing device, see the attached Figure 1-4The device comprises a fixing frame 100 and a clamping unit 200, which work in conjunction with each other. The fixing frame is a removable device that is mounted on a slide rail on the side of the catheter bed in the operating room and is reusable. The sterile clamping unit 200 is a surgical consumable, sterilized, and intended for single use only. The sterile clamping unit 200 and the fixing frame 100 utilize a plug-in installation method, allowing assembly and disassembly in three seconds without tools, facilitating clinical use. The physician can adjust the position of the fixing frame 100 so that the sterile clamping unit 200 clamps onto the rear end of the outer sheath. Once secured, the entire device secures the outer sheath in place throughout the entire surgical procedure, preventing it from shifting, ensuring safe and smooth surgical procedures. When the procedure is complete, the clamping unit 200 is opened to release the outer sheath. The sterile clamping unit 200 can also be removed from the fixing frame 100 for recycling. The entire process is simple to operate and easy to use.

[0030] The fixing frame 100 is in the shape of a gantry, and the bottom of the first end is fixed to the slide rail of the catheter bed by a fixing portion 113 to establish a fixed point; the length of the second end is less than the length of the first end, and the second end is provided with a connecting portion 109 to facilitate operation of the second end; the clamping portion 200 is a disposable sterile consumable, the top of which is plug-in connected to the connecting portion 109, and the clamping end faces downward, and is used to continuously clamp the outer sheath 300 during surgery. In this way, the clamping portion fixes the outer sheath throughout the operation, avoiding the slippage and bleeding of the outer sheath, solving the problem that the doctor must hold the outer sheath by hand, freeing up one hand of the doctor, making it easier for the doctor to operate the guidewire catheter, and improving the safety and efficiency of the operation. The consumables are recycled after each operation and connected to the fixing frame for plug-in connection, which facilitates the installation and removal of disposable consumables and effectively solves the problem of cumbersome device disinfection in actual clinical practice.

[0031] In one embodiment of the present invention, see the attached Figure 2 and 3 The first end of the fixing frame 100 is a bracket 112, and the bracket 112 is a vertically arranged rod, the top of which is connected to the second end of the fixing frame 100, and the bottom of which is provided with a slide rail matching groove 114.

[0032] Advantageously, the notch of the slide rail mating groove 114 faces the side of the slide rail, and the top of the notch has a stopper to prevent the slide rail from falling off when fixed to the slide rail. The bottom of the groove has a first threaded hole, and the fixing part 113 is matched in the first threaded hole to further clamp the slide rail from the bottom. That is to say, when the fixing part 113 is located at the bottom of the groove, the notch is inserted into the slide rail, and then tightened from the bottom by the fixing part to ensure that the bracket and the slide rail are firmly fixed.

[0033] In the above embodiments, see the attached Figure 1The fixing portion 113 may include a squeeze plate 1131, a screw 1132, and an operating handle 1133. The squeeze plate 1131 is in contact with or separates from the slide rail, and its bottom is connected to the screw 1132. The screw 1132 rotates in threaded engagement with the bottom of the first end of the fixing frame, and the bottom of the screw 1132 is connected to the operating handle 1133. Thus, by rotating the operating handle 1133, the screw 1132 can be rotated upward, thereby tightening the squeeze plate 1131 against the slide rail, thus securing it. To disassemble, turn the operating handle 1133 in the opposite direction to drive the screw downward, separating the squeeze plate 1131 from the slide rail, completing the disassembly.

[0034] In other embodiments of the present invention, the upper portion of the bracket 112 is rotatably connected to the horizontal rod 1121. Specifically, a rotating shaft is provided above the bracket 112, and the bracket 112 and the horizontal rod 1121 can rotate 0-90 degrees, making it convenient for the patient to get on and off the catheter bed (when the patient is on the catheter bed, the forearm can be adjusted to a vertical position, and when the patient begins surgery, the rotating shaft is placed in a horizontal position). The horizontal rod 1121 is slidably connected to the middle arm 104, and the end of the middle arm 104 away from the horizontal rod 1121 is vertically connected to the cantilever 1041, and the end of the cantilever 1041 is connected to the clamping portion 200.

[0035] Advantageously, see Appendix Figure 3 The middle arm 104 has a slide groove at the bottom, and the shape of the slide groove is adapted to the shape of the horizontal rod 1121, and the cross-section is preferably a rectangular groove. Two groups of first sliders 1031 are fixed on the inner wall of the slide groove. The two groups of first sliders 1031 slide on the two groups of first linear guide rails 103 fixed on the horizontal rod 1121 through the driving part, thereby ensuring the sliding stability of the middle arm 104.

[0036] In which, the driving part has a first motor bracket 102 and a first screw motor 101, and the top end of the middle arm 104 away from the horizontal rod 1121 has a second threaded hole that cooperates with the screw of the first screw motor 101, and the first screw motor 101 is fixed to the horizontal rod 1121 through the first motor bracket 102. The first screw motor 101 is connected to the front and rear knobs 106, and the front and rear knobs 106 are fixed on the side wall of the cantilever 1041. The first screw motor 101 is powered by the outside, and the rotation of the screw of the first screw motor 101 is controlled by rotating the front and rear knobs 106, thereby making the middle arm 104 slide relative to the horizontal rod 1121, even if the clamping part is close to or away from the bracket 112.

[0037] More advantageously, see the attached Figure 2 and 3A second linear guide 108 is fixed to the inside of the cantilever 1041. A second slider 1081 slides on the second linear guide 108. The second slider 1081 is fixedly connected to a Z-shaped connector 111 arranged parallel to the cantilever 1041. The top plate of the Z-shaped connector 111 has a third threaded hole that cooperates with the screw of the second screw motor 110. The second screw motor 110 is fixed to the inside of the cantilever 1041 via a second motor bracket 105. The second screw motor 110 is connected to the height knob 107; the bottom of the Z-shaped connector 111 is connected to the connecting portion 109. The second screw motor 110 is also powered by an external power supply. The rotation of the screw of the second screw motor 110 is controlled by rotating the height knob 107, thereby making the clamping portion adjustable up and down in the vertical direction.

[0038] In the above embodiments, the connecting portion 109 is a downwardly protruding connecting block, and the connecting block is plugged into the top of the clamping portion 200 .

[0039] In the above embodiments, see the attached Figure 4 The clamping part 200 includes a first clamping end 201 and a second clamping end 202 that are cross-hinged. The end of the first clamping end 201 is a handle 204, and the end of the second clamping end 202 is a connecting slot 203 that is plugged into the connecting part 109. The connecting part 109 is an electromagnet. The connecting slot 203 contains an iron sheet that is magnetically connected to the electromagnet. Driven by the first screw motor 101, the device can move forward and backward, and driven by the second screw motor 110, the device can move up and down. The electromagnet cooperates with the connecting slot 203. When the machine is working, the electromagnet will be energized to suck the iron sheet in the connecting slot 203, so that the sterile clamping part and the fixing frame are connected as one. When the operation is over, the electromagnet loses power, and the sterile clamping part can be easily removed. A new one is used for each operation, and the sterile clamping parts are uniformly recycled after the operation.

[0040] The connecting groove 203 is arranged on the opposite side of the handle 204, and the connecting groove 203 and the whole clamping part are integrated. Therefore, after the clamping part clamps the outer sheath, under the effect of the fixing frame, the whole device will not be displaced, thereby can keep the outer sheath position stable.

[0041] The first clamping end 201 and the second clamping end 202 are made of medical ABS material and have been sterilized with ethylene oxide to ensure that the entire clamping portion is sterile.

[0042] The handle 204 is held by the doctor and is used to open and release the clamping section. A spring is installed within the clamping section. Normally, the clamping section is tightened; when the doctor presses the handle 204, the clamping section opens. The first clamping end 201 and the second clamping end 202 have silicone pads on the clamping side for direct contact with the outer sheath, preventing slippage during clamping.

[0043] The present invention solves the problem that there is no outer sheath fixing device in the current clinical interventional surgery, and the doctor can only rely on the hands to hold it. This solves the problem that the outer sheath may slip during the surgical process such as making contrast agents, avoids wound bleeding caused by the loose outer sheath, and frees the doctor's hands to hold the outer sheath, making it faster and more accurate to operate the guidewire catheter; it uses a disposable consumable that is easy to install and remove to fix the outer sheath, effectively solving the problem of tedious device disinfection in actual clinical practice. The overall structure of the present invention is simple, stable, and modular, which is easy to assemble and debug. The overall device is small in size and convenient for doctors to use. By using a knob to adjust the bracket, it is convenient, easy to operate, and highly practical.

[0044] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0045] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An interventional surgery sheath fixing device, characterized in that: include: A fixing frame (100), the fixing frame (100) is gantry-shaped, the bottom of the first end of the fixing frame is fixed to the slide rail of the catheter bed via a fixing portion (113); the length of the second end of the fixing frame is less than the length of the first end, and the second end of the fixing frame (100) has a connecting portion (109); and a clamping portion (200), the clamping portion (200) being a disposable sterile consumable, the top of which is pluggably connected to the connecting portion (109), with the clamping end facing downward, for continuously clamping the outer sheath (300) during surgery; The first end of the fixing frame (100) is a bracket (112), and the bracket (112) is a vertically arranged rod, the top of which is connected to the second end of the fixing frame (100), and the bottom of which is provided with a slide rail matching groove (114); The upper portion of the bracket (112) is rotatably connected to a horizontal rod (1121), a middle arm (104) is slidably connected to the horizontal rod (1121), an end of the middle arm (104) away from the horizontal rod (1121) is vertically connected to a cantilever (1041), and the end of the cantilever (1041) is connected to the clamping portion (200); The clamping portion (200) comprises a first clamping end (201) and a second clamping end (202) which are cross-hinged, the first clamping end (201) having a handle (204) at its end, the second clamping end (202) having a connecting slot (203) plugged into the connecting portion (109), the connecting portion (109) being an electromagnet, and the connecting slot (203) having an iron sheet magnetically connected to the electromagnet; the first clamping end (201) and the second clamping end (202) having a silicone pad on their clamping sides; The bottom of the middle arm (104) has a slide groove, and a first slider (1031) is fixed on the inner wall of the slide groove. The first slider (1031) slides on and is fixed on the first linear guide rail (103) on the horizontal rod (1121) through a driving unit. The driving portion comprises a first motor bracket (102) and a first screw motor (101); the top end of the middle arm (104) away from the horizontal rod (1121) comprises a second threaded hole matched with the screw of the first screw motor (101); the first screw motor (101) is fixed to the horizontal rod (1121) via the first motor bracket (102); the first screw motor (101) is connected to the front and rear knobs (106); and the front and rear knobs (106) are fixed to the side wall of the cantilever (1041); A second linear guide rail (108) is fixed on the inner side of the cantilever (1041), a second slider (1081) slides on the second linear guide rail (108), and the second slider (1081) is fixedly connected to a Z-shaped connector (111) arranged parallel to the cantilever (1041). A third threaded hole is provided on the top plate of the Z-shaped connector (111) for cooperating with the screw rod of the second screw motor (110). The second screw motor (110) is fixed to the inner side of the cantilever (1041) through a second motor bracket (105), and the second screw motor (110) is connected to the height knob (107); the bottom of the Z-shaped connector (111) is connected to the connecting portion (109).

2. The interventional surgery sheath fixing device according to claim 1, characterized in that: The notch of the slide rail matching groove (114) faces the slide rail side, the top of the notch has a stopper, and the bottom has a first threaded hole, and the fixing portion (113) is matched in the first threaded hole to further clamp the slide rail.

3. An interventional surgery sheath fixing device according to claim 1 or 2, characterized in that: The fixing portion (113) includes an extrusion plate (1131), a screw rod (1132) and an operating handle (1133). The extrusion plate (1131) abuts against or separates from the slide rail, and its bottom is connected to the screw rod (1132). The screw rod (1132) rotates in conjunction with the bottom thread of the first end of the fixing frame, and the bottom of the screw rod (1132) is connected to the operating handle (1133).

4. The interventional surgery sheath fixing device according to claim 1, characterized in that: The connecting portion (109) is a downwardly protruding connecting block, and the connecting block is plugged into the top of the clamping portion (200).

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