CN114748763B

CN114748763B - An interventional surgery sheath fixing device

Info

Publication number: CN114748763B
Application number: CN202210357330.0A
Authority: CN
Inventors: 黄韬; 解菁
Original assignee: Beijing Wemed Medical Equipment Co Ltd
Current assignee: Beijing Wemed Medical Equipment Co Ltd
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2025-09-05
Anticipated expiration: 2042-04-01
Also published as: CN114748763A

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

Intervention operation sheath fixing device

Technical Field

The invention relates to the technical field of minimally invasive interventional procedures, in particular to an interventional procedure sheath fixing device.

Background

The cardiovascular and cerebrovascular minimally invasive interventional therapy is a main treatment means for cardiovascular and cerebrovascular diseases. Compared with the traditional surgery, the method has the obvious advantages of small incision, short postoperative recovery time and the like. The cardiovascular and cerebrovascular intervention operation is a treatment process by a doctor manually sending the catheter, the guide wire, the bracket and other instruments into a patient. The first step in the interventional procedure is to place an outer sheath over the blood vessel of the body, typically selecting either the femoral artery at the thigh, or the radial artery at the wrist. The physician cuts a small incision in the thigh or wrist of the patient and places the sheath within the corresponding arterial vessel. After placement, the catheter and guidewire can be advanced along the passageway to the focal site in the body, corresponding to the passageway being established. The placement of the sheath will directly affect the effect of the operation, and the relative static state of the sheath and the human body needs to be maintained during the operation, so that the integrity and smoothness of the channel are ensured.

However, at present, the outer sheath is loose or misplaced in the operation, which leads to bleeding at the incision of the human body, and when the imaging agent is manufactured, particularly in the neuro interventional operation, the outer sheath is often injected by a high-pressure injector, so that the outer sheath is subjected to reaction force, and the situation of displacement and outer sheath falling off directly affects the operation. In the operation, a doctor has to hold the outer sheath by means of manpower so as to prevent the outer sheath from moving in the operation, and the doctor controls the catheter guide wire to enter the blood vessel while holding the outer sheath, thereby seriously affecting the operation efficiency and the operation effect.

Therefore, how to provide an interventional operation sheath fixing device is a problem to be solved by those skilled in the art.

Disclosure of Invention

Therefore, the present invention aims to provide an interventional operation sheath fixing device, which at least solves one of the above problems.

The invention provides an interventional operation sheath fixing device, which comprises:

The fixing frame is in a gantry shape, and the bottom of a first end of the fixing frame is fixed on a sliding rail of a catheter bed through a fixing part;

And the clamping part is disposable sterile consumable, the top of the clamping part is connected with the connecting part in a plug manner, and the clamping end of the clamping part faces downwards and is used for continuously clamping the outer sheath in operation.

Compared with the prior art, the invention discloses the interventional operation sheath fixing device, which adopts the portal-shaped fixing frame, the first end of the fixing frame is fixed on the guide rail of the catheter bed, the second end of the fixing frame is inserted and pulled out to form the disposable sterile processing clamping part as a consumable, and the sheath is continuously clamped in the operation, so that the sheath is fixed in the whole process of the operation, the slipping and bleeding of the sheath are avoided, the operation that a doctor has to hold the sheath by hands is solved, one hand of the doctor is liberated, the doctor can operate the guide wire catheter more easily, and the safety and efficiency of the operation are improved. The consumable is recovered after each operation and is connected with the fixing frame in a plugging manner, so that the disposable consumable is convenient to install and dismantle, and the problem that the device is sterilized in actual clinic is effectively solved.

Further, the first end of the fixing frame is a support, the support is a rod piece which is vertically arranged, the top of the support is connected with the second end of the fixing frame, and the bottom of the support is provided with a sliding rail matching groove.

Further, the notch of the sliding rail matching groove faces to the sliding rail side, a stop is arranged at the top of the notch, a first threaded hole is formed in the bottom of the notch, and the first threaded hole is matched with the fixing part and used for further clamping the sliding rail.

The first step is that the fixed part includes the stripper plate, screw rod and operation handle, stripper plate and slide rail butt or separation, its bottom is connected the screw rod, the screw rod with the first end bottom screw thread cooperation of mount rotates, the screw rod bottom is connected the operation handle.

Further, the upper portion of the support is rotatably connected with a horizontal rod, a middle arm is connected to the horizontal rod in a sliding mode, a cantilever is vertically connected to the end portion, away from the horizontal rod, of the middle arm, and the tail end of the cantilever is connected with the clamping portion.

Further, a sliding groove is formed in the bottom of the middle arm, a first sliding block is fixed on the inner wall of the sliding groove, and the first sliding block slides on and is fixed on a first linear guide rail on the horizontal rod through a driving part.

Further, the driving part is provided with a first motor bracket and a first screw motor, the top of the end of the middle arm far away from the horizontal rod is provided with a second threaded hole matched with a screw rod of the first screw motor, the first screw motor is fixed on the horizontal rod through the first motor bracket, the first screw motor is connected with a front knob and a rear knob, and the front knob and the rear knob are fixed on the side wall of the cantilever.

Further, a second linear guide rail is fixed on the inner side of the cantilever, a second sliding block is arranged on the second linear guide rail in a sliding mode, a Z-shaped connecting piece which is parallel to the cantilever is fixedly connected to the second sliding block, a third threaded hole matched with a screw rod of a second screw rod motor is formed in a top plate of the Z-shaped connecting piece, the second screw rod motor is fixed on the inner side of the cantilever through a second motor support, the second screw rod motor is connected with a high-low knob, and the bottom of the Z-shaped connecting piece is connected with the connecting portion.

Further, the connecting part is a connecting block protruding downwards, and the connecting block is spliced with the top of the clamping part.

Further, the clamping part comprises a first clamping end and a second clamping end which are hinged in a crossing manner, the tail end of the first clamping end is a handle, the tail end of the second clamping end is a connecting groove spliced with the connecting part, the connecting part is an electromagnet, an iron sheet magnetically connected with the electromagnet is arranged in the connecting groove, and the first clamping end and the second clamping end are clamped and provided with a silica gel pad.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an interventional sheath fixing device according to the present invention;

FIG. 2 is a schematic view showing the structure of the fixing frame;

FIG. 3 is an exploded view of FIG. 2;

fig. 4 shows a schematic structural view of the clamping part.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The problems of loosening or misplacement of the sheath in the operation, bleeding at the incision of a human body, reaction force caused by injection of a high-pressure injector in the process of making a contrast agent, displacement and falling of the sheath in the process of nerve intervention operation, direct influence on the operation, manual holding of the sheath by a doctor in the operation, prevention of movement of the sheath end in the operation, and serious influence on the operation efficiency and the operation effect due to the fact that the doctor needs to control a catheter guide wire to enter a blood vessel while holding the sheath.

Accordingly, the embodiment of the invention discloses an interventional operation sheath fixing device, which comprises a fixing frame 100 and a clamping part 200, and the fixing frame and the clamping part are matched with each other for use, referring to fig. 1-4. The fixing frame is movable equipment and is arranged on a sliding rail at the side of the catheter bed in an operating room, so that the catheter bed can be repeatedly used. The aseptic clamping part 200 is a surgical consumable, and is subjected to sterilization treatment and is only used for one time. The aseptic clamping part 200 and the fixing frame 100 adopt a plug-in type mounting mode, and can be assembled and disassembled within three seconds without tools, thereby being convenient for clinical use. The doctor can adjust the position of the fixing frame 100 so that the aseptic clamping portion 200 can be clamped to the tail end of the outer sheath. After finishing fixing, the whole device can fix the position of the outer sheath in the whole operation course, so that the outer sheath is not displaced, the operation safety is ensured, and the operation can be smoothly carried out. When the operation is finished, the holding part 200 is opened to release the fixation of the outer sheath. And the aseptic clamping part 200 can be removed from the fixing frame 100 for recycling treatment. The whole process is simple to operate and convenient to use.

The fixing frame 100 is in a gantry shape, the bottom of a first end of the fixing frame is fixed on a sliding rail of a catheter bed through a fixing part 113 to establish a fixing point, the length of a second end of the fixing frame is smaller than that of the first end, a connecting part 109 is arranged at the second end of the fixing frame, the second end is convenient to operate, the clamping part 200 is a disposable sterile consumable, the top of the clamping part 200 is connected with the connecting part 109 in a plug-in manner, and the clamping end of the clamping part faces downwards and is used for continuously clamping the outer sheath 300 in an operation. Therefore, the clamping part fixes the outer sheath in the whole process of operation, so that the slipping and bleeding of the outer sheath are avoided, the problem that a doctor must hold the outer sheath by hand is solved, one hand of the doctor is liberated, the doctor can operate the guide wire catheter more easily, and the safety and efficiency of the operation are improved. The consumable is recovered after each operation and is connected with the fixing frame in a plugging manner, so that the disposable consumable is convenient to install and dismantle, and the problem that the device is sterilized in actual clinic is effectively solved.

In one embodiment of the present invention, referring to fig. 2 and 3, the first end of the fixing frame 100 is a bracket 112, the bracket 112 is a rod member arranged vertically, the top of the rod member is connected to the second end of the fixing frame 100, and a sliding rail matching groove 114 is formed at the bottom of the rod member.

Advantageously, the notch of the sliding rail matching groove 114 faces the sliding rail side, the top of the notch is provided with a stop, when the sliding rail matching groove is fixed with the sliding rail, the sliding rail is prevented from falling off, the bottom of the groove is provided with a first threaded hole, the first threaded hole is matched with the fixing part 113 for further clamping the sliding rail from the bottom, that is, when the fixing part 113 is positioned at the lowest part of the bottom of the groove, the notch is clamped into the sliding rail, then the fixing part is used for pushing the sliding rail from the bottom, and the fixing of the bracket and the sliding rail is ensured.

In the foregoing embodiment, referring to fig. 1, the fixing portion 113 may include a pressing plate 1131, a screw 1132 and an operating handle 1133, where the pressing plate 1131 is abutted to or separated from the sliding rail, the bottom of the pressing plate is connected with the screw 1132, the screw 1132 is screwed with the bottom of the first end of the fixing frame, and the bottom of the screw 1132 is connected with the operating handle 1133. Therefore, the screw 1132 can be driven to rotate and move upwards through the rotating operation handle 1133, the extrusion plate 1131 is abutted against the sliding rail to be fixed, and the screw 1133 is driven to move downwards through the reverse screwing operation handle 1133 during disassembly, so that the extrusion plate 1131 is separated from the sliding rail, and the disassembly is completed.

In other embodiments of the present invention, the upper portion of the support 112 is rotatably connected to the horizontal rod 1121, specifically, a rotating shaft is provided above the support 112, and the support 112 and the horizontal rod 1121 may rotate by 0-90 ° to facilitate the patient to go up and down the catheter bed (the forearm may be adjusted to a vertical position when the patient goes up the catheter bed, and the rotating shaft may be placed to a horizontal position when the patient starts a surgery). The horizontal rod 1121 is slidably connected with a middle arm 104, an end portion, far away from the horizontal rod 1121, of the middle arm 104 is vertically connected with a cantilever 1041, and the tail end of the cantilever 1041 is connected with the clamping portion 200.

Advantageously, referring to fig. 3, the bottom of the middle arm 104 has a sliding groove, the sliding groove is a groove with a shape adapted to the shape of the horizontal rod 1121, preferably a rectangular cross section, two sets of first sliding blocks 1031 are fixed on the inner wall of the sliding groove, and the two sets of first sliding blocks 1031 slide on and are fixed on the two sets of first linear guide rails 103 on the horizontal rod 1121 through a driving part, thereby ensuring the sliding stability of the middle arm 104.

The driving part is provided with a first motor bracket 102 and a first screw motor 101, the top of the end of the middle arm 104 far away from the horizontal rod 1121 is provided with a second threaded hole matched with a screw of the first screw motor 101, the first screw motor 101 is fixed on the horizontal rod 1121 through the first motor bracket 102, the first screw motor 101 is connected with a front knob 106 and a rear knob 106, the front knob 106 and the rear knob 106 are fixed on the side wall of the cantilever 1041, the first screw motor 101 supplies power from the outside, the screw of the first screw motor 101 is controlled to rotate by rotating the front knob 106 and the rear knob 106, and the middle arm 104 slides relative to the horizontal rod 1121 even if the clamping part approaches or is far away from the bracket 112.

More advantageously, referring to fig. 2 and 3, a second linear guide rail 108 is fixed on the inner side of the cantilever 1041, a second slider 1081 is slidably mounted on the second linear guide rail 108, a Z-shaped connecting piece 111 arranged parallel to the cantilever 1041 is fixedly connected to the second slider 1081, a third threaded hole matched with a screw rod of a second screw motor 110 is formed on a top plate of the Z-shaped connecting piece 111, the second screw motor 110 is fixed on the inner side of the cantilever 1041 through a second motor bracket 105, the second screw motor 110 is connected with a high-low knob 107, and the bottom of the Z-shaped connecting piece 111 is connected with the connecting part 109. The second screw motor 110 is powered from the outside, and the screw of the second screw motor 110 is controlled to rotate by rotating the high-low knob 107, so that the clamping part can be adjusted up and down along the vertical direction.

In the above embodiments, the connection portion 109 is a connection block protruding downward, and the connection block is inserted into the top of the clamping portion 200.

In the above embodiments, referring to fig. 4, the clamping portion 200 includes a first clamping end 201 and a second clamping end 202 that are hinged in a cross manner, the end of the first clamping end 201 is a handle 204, the end of the second clamping end 202 is a connecting slot 203 that is inserted into the connecting portion 109, the connecting portion 109 is an electromagnet, an iron sheet magnetically connected with the electromagnet is disposed in the connecting slot 203, and the device can move back and forth under the driving of the first lead screw motor 101, and can move up and down under the driving of the second lead screw motor 110. The electromagnet cooperates with the connecting slot 203. When the machine works, the electromagnet can absorb the iron sheet in the connecting groove 203 when being electrified, so that the sterile clamping part and the fixing frame are connected into a whole. After the operation is finished, the electromagnet is powered off, so that the sterile clamping piece can be conveniently taken down. Each operation uses a new one, and the operation is finished and then is uniformly recovered.

The connection groove 203 is provided opposite to the handle 204, and the connection groove 203 is integrated with the entire holder portion. Therefore, after the outer sheath is clamped by the clamping part, the whole device cannot displace under the action of the fixing frame, so that the position of the outer sheath can be kept stable.

The first clamping end 201 and the second clamping end 202 are made of medical ABS materials, and are subjected to ethylene oxide sterilization treatment, so that the whole clamping portion is aseptic.

The handle 204 is the portion that is held by the physician for opening and releasing the grip. The clamping part is internally provided with a spring. The normal state is the gripping state, and the doctor is turned to the open state when pressing the handle 204. The first clamping end 201 and the second clamping end 202 are used for clamping and measuring a silica gel pad for directly contacting with the outer sheath, so that slipping during clamping can be prevented.

The invention solves the problem that the prior interventional operation is not provided with an outer sheath fixing device in clinic and can only be held by hands of doctors, thereby solving the problem that the outer sheath can slip off in the operation process of the imaging agent and the like, avoiding wound bleeding caused by loosening of the outer sheath, freeing hands of doctors for holding the outer sheath, enabling the doctor to operate the guide wire catheter more quickly and accurately, adopting a disposable consumable manner convenient for installation and removal to fix the outer sheath, and effectively solving the problem of complex disinfection of the device in actual clinic. The invention has simple integral structure and good stability, adopts a modularized mode, and is convenient for assembly and debugging. The whole device has small volume and is convenient for doctors to use. Through adopting knob to adjust the support, convenient to use, easy operation, the practicality is strong.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. An interventional surgical sheath fixation device, comprising:

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. An interventional surgical outer 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 part (113) is matched in the first threaded hole to further clamp the slide rail.

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

4. The outer sheath fixing device for interventional surgery 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).