Adjustable anti-displacement bite block fixator for double-cavity tracheal catheter

Abstract

The invention relates to the technical field of catheter fixation, in particular to an adjustable anti-displacement bite block fixator for a double-cavity tracheal catheter. The device comprises a surrounding waistband and a locking adhesive tape arranged on the surrounding waistband, and further comprises a bidirectional arc-shaped channel and an opposite clamping mechanism which are arranged on the surrounding waistband, and a mounting groove is formed in the inner wall of the bidirectional arc-shaped channel. The guide pipe is pressed downwards through the arc-shaped tooth cushion, the guide pipe, the bearing strip and the sliding block are extruded to move downwards, the follow-up extrusion frame below the bearing strip moves downwards along with the follow-up extrusion frame, the reverse extrusion shaft columns are driven to penetrate through the sliding block to conduct reverse jacking, the multiple reverse extrusion shaft columns are evenly distributed and extruded at the bottom of the guide pipe, and conical point pressure on multiple point positions at the bottom end of the guide pipe is formed; therefore, a plurality of triangular clamping extrusion locking structures are formed on the upper side and the lower side of the catheter, longitudinal resistance to the catheter is formed through the longitudinal rubber strips, three-dimensional constraint to the catheter is formed, and axial sliding resistance during catheter locking is increased.

Description

Technical Field

[0001] The invention relates to the technical field of catheter fixing, in particular to an adjustable double-lumen endotracheal tube anti-displacement teeth pad fixer. Background Art

[0002] During thoracic surgery anesthesia, double-lumen endobronchial tubes are used in thoracic surgery, which can not only isolate and ventilate the airways of the healthy lung and the diseased lung, but also provide a good surgical field of view.

[0003] When inserting and fixing the catheter, in order to lock the position of the catheter, a tracheal tube bite block fixator is usually used to fix the catheter to the patient's side.

[0004] During actual operation, when the double-lumen tube is inserted and the body is positioned, the double-lumen tube may shift, causing the tube to be too deep or fall out. This is because when the tube is locked by the screwed-in tooth pad, there is no locking effect on the tube along the length of the tube. When the tube is pulled and bumped, it will slide along the length of the tube, causing the tube to slide in and out.

[0005] In addition, since the fixation of the dental pad holder is difficult to loosen, after the body is positioned properly, if the catheter needs to be adjusted, the tape needs to be loosened, and it is not possible to quickly and easily loosen the dental pad part and adjust the catheter depth.

[0006] In view of the above problems, the existing technology is in urgent need of improvement. Summary of the Invention

[0007] The present invention provides an adjustable double-lumen endotracheal tube anti-displacement bite block holder, which, through the opposing clamping and locking bite block structure, helps the tube to self-lock after insertion, thereby reducing the displacement of the tube. In addition, it also increases the locking force of the locking structure along the length of the tube, further reducing the displacement of the tube, thereby solving the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention provides an adjustable double-lumen endotracheal tube anti-displacement mouthpiece holder, comprising a waistband and a locking tape disposed on the waistband, and further comprising a bidirectional arcuate channel and an opposing clamping mechanism disposed on the waistband, wherein an installation groove is provided on the inner wall of the bidirectional arcuate channel;

[0009] The opposing clamping mechanism includes a locking tooth pad assembly and a receiving and extruding member, wherein the receiving and extruding member includes a receiving strip arranged in contact with the mounting groove, an elastic member for driving the receiving strip to slide outward, and a follower extruding member;

[0010] The locking bite pad assemblies are arranged in a group along the inner wall of the bidirectional arcuate channel, and the arcuate bite pads of the multiple locking bite pad assemblies are all facing the receiving strip, and elastic members and follower extrusion members corresponding to the number of arcuate bite pads are arranged under the receiving strip. The locking bite pad assembly includes a rotating frame shaft rotatably mounted on the surrounding waist belt and an arcuate bite pad arranged at the end of the rotating frame shaft. The arcuate bite pad is facing the receiving strip, so that the arcuate bite pad can squeeze the conduit and the receiving strip when it moves downward, and the elastic member is used to form an extrusion locking effect;

[0011] The connecting bar is an arc-shaped bar and fits the inner wall of the installation groove. The outer surface of the connecting bar is provided with a longitudinal rubber strip for increasing friction;

[0012] Wherein, the longitudinal rubber strip is a medical rubber strip with an upward convex edge;

[0013] A vertical partition is provided below the connecting bar for shielding the reverse extrusion shaft column, and a plurality of follower extrusion members are provided in a group between the vertical partitions below the connecting bar.

[0014] The follower extrusion member includes a follower extrusion frame and a reverse extrusion shaft column, one end of the follower extrusion frame is rotatably connected to the receiving bar, and the other end is slidably arranged in contact with the bottom wall of the mounting groove, one end of the reverse extrusion shaft column is rotatably connected to the sliding end of the follower extrusion frame, and the other end passes through the receiving bar and points to one side of the arc-shaped tooth pad, and when the receiving bar moves downward, the reverse extrusion shaft column is driven to push up and form a small area of ​​extrusion on the catheter to increase lateral friction, and the end of the reverse extrusion shaft column is a convex soft rubber block, and the soft rubber block is lower than the top wall of the receiving bar;

[0015] The elastic member includes a sliding block and a return spring. The sliding block is slidably arranged in contact with the inner wall of the installation groove, and the end of the sliding block is connected to the receiving bar. The return spring is arranged between the bottom of the sliding block and the bottom wall of the installation groove, so that the sliding block and the receiving bar maintain a tendency to slide outward.

[0016] The reverse extrusion shaft column moves through the sliding block, so that the sliding block can limit and guide the reverse extrusion shaft column when it moves upward.

[0017] As a further improvement of the present technical solution, shielding plates are provided on the upper and lower sides of the surrounding belt, and the position where the rotating frame shaft passes through the surrounding belt is located on the upper and lower sides of the surrounding belt, so that the shielding plates can shield the rotating frame shaft.

[0018] In this technical solution, the bidirectional arc-shaped channel can accommodate two groups of tracheal tubes at the same time. The inner wall of the channel integrates multiple sets of independently adjustable locking bite pad assemblies and receiving extrusion parts to cooperate with each other to achieve multi-point locking of a single tube or synchronous locking of multiple tubes. In addition, when the arc-shaped bite pad presses down the tube, the follow-up extrusion frame under the receiving bar drives the reverse extrusion shaft column to rise in the opposite direction, forming a conical point pressure on the side wall of the tube, together forming multiple triangular clamping points, enhancing the tube's anti-displacement ability, and the longitudinal rubber strip on the surface of the arc-shaped bite pad forms a longitudinal resistance to the tube, further enhancing the longitudinal friction.

[0019] Compared with the prior art, the present invention provides an adjustable double-lumen endotracheal tube anti-displacement mouthpiece holder, which has the following beneficial effects:

[0020] The present invention presses down the catheter through the arc-shaped tooth pad, squeezing the catheter, the receiving bar and the sliding block downward, and the follower extrusion frame below the receiving bar moves downward, driving the reverse extrusion shaft column to pass through the sliding block and rise in the opposite direction. Multiple reverse extrusion shaft columns are evenly distributed and squeezed on the bottom of the catheter, forming a conical point pressure on multiple points at the bottom end of the catheter, thereby forming multiple triangular clamping extrusion locking structures on the upper and lower sides of the catheter, and then forming a longitudinal resistance to the catheter through the longitudinal rubber strip, forming a three-dimensional constraint on the catheter, and increasing the axial sliding resistance when locking the catheter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0023] Figure 3 A schematic diagram of the structural distribution of the locking bite block assembly and the receiving extrusion member of the present invention;

[0024] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0025] Figure 5 It is a front view of the overall structure of the present invention;

[0026] Figure 6 It is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 7 for Figure 6 A magnified view of the structure at point B in the middle;

[0028] Figure 8 This is a cross-sectional view of the structure when the catheter is locked between the locking tooth pad assembly and the receiving extrusion member in the present invention.

[0029] In the figure: 1. Wrap-around belt; 11. Shielding piece; 2. Locking tape; 3. Bidirectional arc channel; 31. Mounting slot; 4. Locking tooth pad assembly; 41. Rotating frame shaft; 42. Arc tooth pad; 5. Supporting extrusion member; 51. Supporting strip; 511. Longitudinal rubber strip; 52. Elastic member; 521. Sliding block; 522. Return spring; 53. Follow-up extrusion member; 531. Follow-up extrusion frame; 532. Reverse extrusion shaft column; 533. Unlocking dial block. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figures 1 to 8 As shown, the present invention provides an adjustable double-lumen endotracheal tube anti-displacement bite pad holder. In order to further increase the axial locking force of the catheter along the length direction when the bite pad is used to complete the locking after the catheter is inserted, thereby reducing the displacement of the catheter, the device includes a surrounding belt 1 and a locking tape 2 provided on the surrounding belt 1. The locking tape 2 is made of medical plastic material. The locking tape 2 is an elastic tape with adjustable length, and the inner side of the locking tape 2 is provided with anti-slip grooves, which are used to wrap the surrounding belt 1 and the locking tape 2 around a bed or a patient's body. The device also includes a bidirectional arcuate channel 3 provided on the surrounding belt 1 and an opposing clamping mechanism provided on the inner side of the bidirectional arcuate channel 3. The inner wall of the bidirectional arcuate channel 3 is provided with a mounting groove 31.

[0032] like Figure 1 and Figure 2 As shown, a bidirectional arc-shaped channel 3 is opened around the waist belt 1 and passes through the middle of the waist belt. The two arc-shaped channels can be used to accommodate two sets of tracheal tubes respectively.

[0033] The opposing clamping mechanism includes a locking tooth pad assembly 4 and a receiving and extruding member 5. The receiving and extruding member 5 includes a receiving bar 51 arranged in contact with the mounting groove 31, an elastic member 52 for driving the receiving bar 51 to slide outward, and a follower extruding member 53. The locking tooth pad assembly 4 includes a rotating frame shaft 41 rotatably mounted on the surrounding waist belt 1 and an arc-shaped tooth pad 42 arranged at the end of the rotating frame shaft 41. The rotating frame shaft 41 is a threaded rotating shaft and passes through the side wall of the surrounding waist belt 1 through a bearing, so that the rotation of the rotating frame shaft 41 can drive the arc-shaped tooth pad 42 to move downward. The arc-shaped tooth pad 42 is opposite to the receiving bar 51, so that the downward movement of the arc-shaped tooth pad 42 can squeeze the conduit and the receiving bar 51, and the elastic member 52 is used to form an extrusion locking effect;

[0034] The arc-shaped tooth pad 42 is made of medical silicone, and its inner concave arc surface matches the outer diameter of the catheter, and its width covers one-third of the circumference of the catheter.

[0035] Multiple locking bit pad assemblies 4 are arranged in a group along the inner wall of the bidirectional arcuate channel 3, and the arcuate bit pads 42 of multiple locking bit pad assemblies 4 are all facing the receiving strip 51, and elastic parts 52 and follower extrusion parts 53 corresponding to the number of arcuate bit pads 42 are arranged under the receiving strip 51, so that a locking position along the channel is formed in the bidirectional arcuate channel 3, and the catheter locking position can be replaced without moving the entire surrounding belt 1.

[0036] It should be clear that the multiple locking bite pad assemblies 4 arranged in the bidirectional arc channel 3 can individually adjust the orientation of each arc bite pad 42 when necessary, so that the multiple arc bite pads 42 can lock the catheter in the bidirectional arc channel 3 at different angles. In addition, by adjusting the angles of the multiple arc bite pads 42, the multiple arc bite pads 42 can act on the same catheter, forming multi-point bite pad locking for the same catheter in the bidirectional arc channel 3, thereby increasing the operability of fixing the catheter.

[0037] The follower extrusion member 53 includes a follower extrusion frame 531 and a reverse extrusion shaft column 532. One end of the follower extrusion frame 531 is rotatably connected to the receiving bar 51, and the other end is slidably arranged in contact with the inner wall of the installation groove 31. Figure 8 As shown, the follower extrusion frame 531 is an L-shaped lever frame, one end of which is hinged to the receiving bar 51, and the other end is embedded with a ball and slides against the bottom wall of the mounting groove 31. One end of the reverse extrusion shaft column 532 is rotatably connected to the sliding end of the follower extrusion frame 531, and the other end passes through the receiving bar 51 and points to the side of the arc-shaped tooth pad 42. Therefore, when the receiving bar 51 moves downward, the sliding drive of the follower extrusion frame 531 drives the reverse extrusion shaft column 532 to move in the opposite direction, forming a small area of ​​extrusion on the catheter and increasing the lateral friction force.

[0038] Among them, the end of the reverse extrusion shaft column 532 is a convex hemispherical soft rubber block, and the soft rubber block is lower than the top wall of the supporting bar 51, so that the arc-shaped tooth pad 42 moves downward and squeezes the catheter and the supporting bar 51 downward. At this time, the supporting bar 51 moves downward and drives the reverse extrusion shaft column 532 to move in the opposite direction, thereby forming a reverse extrusion force.

[0039] like Figure 4 and Figure 5 As shown, the connecting bar 51 is an arc-shaped bar and fits against the inner wall of the mounting groove 31. When the catheter is inserted into the bidirectional arc-shaped channel 3, the connecting bar 51 is squeezed and moved downward in the mounting groove 31. The outer surface of the connecting bar 51 is provided with a longitudinal rubber strip 511 for increasing friction.

[0040] The longitudinal rubber strip 511 is a rubber strip with an upward convex edge. The longitudinal rubber strip 511 is made of medical silicone material and has friction edges formed on the surface of the receiving strip 51 .

[0041] like Figure 7 As shown, the elastic member 52 includes a sliding block 521 and a return spring 522. The sliding block 521 is slidably arranged in contact with the inner wall of the installation groove 31, and the end of the sliding block 521 is connected to the receiving bar 51. The return spring 522 is arranged below the sliding block 521 and between the bottom wall of the installation groove 31, so that the sliding block 521 and the receiving bar 51 maintain a tendency to slide outward.

[0042] Among them, the reverse extrusion shaft column 532 moves through the sliding block 521, so that the sliding block 521 can limit and guide the reverse extrusion shaft column 532 when it moves upward. In addition, the elastic member 52 can make the position of the supporting bar 51 dynamically variable, thereby compensating for the difference in the size of the catheter and preventing overpressure.

[0043] like Figure 8 As shown, the follower extrusion member 53 further includes an unlocking block 533. One side of the mounting groove 31 passes through the outer wall of the surrounding waist belt 1. One end of the unlocking block 533 is connected to the sliding block 521, and the other end passes through the mounting groove 31 and extends beyond the outer wall of the surrounding waist belt 1. The unlocking block 533 is provided with anti-slip grooves, so that the unlocking block 533 can extend beyond the end of the mounting groove 31. When needed, the unlocking block 533 is toggled, thereby driving the sliding block 521 and the receiving bar 51 to move downward, unlocking the receiving bar 51 from squeezing and clamping the catheter.

[0044] A vertical partition for blocking the reverse extrusion shaft column 532 is provided below the connecting bar 51, and a plurality of follower extrusion members 53 are arranged in a group between the vertical partitions below the connecting bar 51, so that the reverse extrusion shaft column 532 can form an extrusion positioning of multiple points of the catheter when passing through the connecting bar 51.

[0045] It should be clear that when the connecting bar 51 is subjected to downward pressure, the sliding block 521 compresses the reset spring 522, and at the same time, one end of the follower extrusion frame 531 moves downward along the mounting groove 31, forcing the reverse extrusion shaft column 532 to push up. When the end of the reverse extrusion shaft column 532 pushes up and exceeds the top of the connecting bar 51, reverse extrusion of the catheter will be formed.

[0046] Shielding pieces 11 are provided on the upper and lower sides of the wrap-around belt 1 . The positions where the rotating frame shafts 41 pass through the wrap-around belt 1 are located on the upper and lower sides of the wrap-around belt 1 , so that the shielding pieces 11 can shield multiple rotating frame shafts 41 .

[0047] Working principle: Place the double-lumen endotracheal tube into the two-way arc channel 3, and the tube slides in along the two-way arc channel 3. The tube fits the friction edge on the longitudinal rubber strip 511. At this time, the reset spring 522 is in an extended state, and the soft rubber block of the reverse extrusion shaft column 532 is located under the receiving bar 51, and is screwed into the rotating frame shaft 41, driving the arc-shaped tooth pad 42 to press down. The arc-shaped tooth pad 42 is used to squeeze the tube and the receiving bar 51 downward, so that the arc-shaped tooth pad 42 is pressed against the upper wall of the tube. At this time, the sliding block 521 compresses the reset spring 522, and during the downward movement of the receiving bar 51, it will drive the follow-up extrusion frame 531 to move downward and drive the reverse extrusion shaft column 532. The upper push, multiple reverse extrusion shaft columns 532 are pushed up, and the soft rubber block at the top is used to press against the side wall of the catheter, forming a small area of ​​extrusion on the catheter, and forming a multi-point triangular clamp with the arc-shaped tooth pad 42. The conical extrusion effect generated by the reverse extrusion shaft column 532 on the side wall of the catheter improves the static friction. In addition, the friction edge of the longitudinal rubber strip 511 on the connecting bar 51 will increase the longitudinal friction and further suppress the axial displacement of the catheter. When the catheter needs to be loosened for adjustment, the unlocking block 533 can be dialed to drive the sliding block 521 and the connecting bar 51 to move downward in the mounting groove 31, thereby loosening the catheter in a small range for easy adjustment.

[0048] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable double-lumen endotracheal tube anti-displacement mouthpiece holder, comprising a waistband (1) and a locking tape (2) arranged on the waistband (1), characterized in that: Also includes: A bidirectional arc-shaped channel (3) is provided on the surrounding waist belt (1), and a mounting groove (31) is provided on the inner wall of the bidirectional arc-shaped channel (3); An opposing clamping mechanism, the opposing clamping mechanism includes a locking tooth pad assembly (4) and a receiving and extruding member (5), the receiving and extruding member (5) includes a receiving bar (51) arranged to fit the mounting groove (31), an elastic member (52) for driving the receiving bar (51) to slide outward, and a follower extruding member (53), the locking tooth pad assembly (4) includes an arc-shaped tooth pad (42) that can be screwed into the receiving bar (51), so that the arc-shaped tooth pad (42) can be moved downward to squeeze the conduit and the receiving bar (51), and the elastic member (52) is used to form an extrusion locking effect; The follower extrusion member (53) includes a follower extrusion frame (531) and a reverse extrusion shaft column (532). One end of the follower extrusion frame (531) is rotatably connected to the receiving bar (51), and the other end is slidably arranged in contact with the bottom wall of the mounting groove (31). One end of the reverse extrusion shaft column (532) is rotatably connected to the sliding end of the follower extrusion frame (531), and the other end passes through the receiving bar (51) and points to one side of the arc-shaped tooth pad (42). When the receiving bar (51) moves downward, the reverse extrusion shaft column (532) is driven to push up and form a small area of ​​extrusion on the catheter to increase lateral friction.

2. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 1, characterized in that: The connecting strip (51) is an arc-shaped strip and fits against the inner wall of the mounting groove (31). The outer surface of the connecting strip (51) is provided with a longitudinal rubber strip (511) for increasing friction. Wherein, the longitudinal rubber strip (511) is a rubber strip with an upward convex edge.

3. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 1, characterized in that: The elastic member (52) includes a sliding block (521) and a return spring (522). The sliding block (521) is slidably arranged in contact with the inner wall of the installation groove (31), and the end of the sliding block (521) is connected to the receiving bar (51). The return spring (522) is arranged between the bottom of the sliding block (521) and the bottom wall of the installation groove (31), so that the sliding block (521) and the receiving bar (51) maintain a tendency to slide outward. The reverse extrusion shaft column (532) moves through the sliding block (521), so that the sliding block (521) acts to limit and guide the reverse extrusion shaft column (532) when it moves upward.

4. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 1, characterized in that: The follower extrusion member (53) further includes an unlocking block (533), one side of the mounting slot (31) passes through the outer wall of the surrounding waist belt (1), one end of the unlocking block (533) is connected to the sliding block (521), and the other end passes through the mounting slot (31) and exceeds the outer wall of the surrounding waist belt (1).

5. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 2, characterized in that: The end of the reverse extrusion shaft column (532) is an outwardly convex soft rubber block, and the soft rubber block is lower than the top wall of the receiving bar (51).

6. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 5, characterized in that: A vertical partition for shielding the reverse extrusion shaft column (532) is provided below the connecting bar (51), and a plurality of follower extrusion members (53) are provided in a group and are respectively provided between the vertical partitions below the connecting bar (51).

7. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 1, characterized in that: The locking tooth pad assemblies (4) are arranged in a group along the inner wall of the bidirectional arc-shaped channel (3), and the arc-shaped tooth pads (42) of the multiple locking tooth pad assemblies (4) are all facing the receiving bar (51), and elastic members (52) and follower extrusion members (53) corresponding to the number of arc-shaped tooth pads (42) are arranged below the receiving bar (51); The locking tooth pad assembly (4) comprises a rotating frame shaft (41) rotatably mounted on the waist belt (1) and an arc-shaped tooth pad (42) arranged at the end of the rotating frame shaft (41), and the arc-shaped tooth pad (42) faces the receiving strip (51).

8. The adjustable double-lumen endotracheal tube anti-displacement bite block holder according to claim 7, characterized in that: The upper and lower sides of the wraparound belt (1) are both provided with shielding sheets (11), and the position where the rotating frame shaft (41) passes through the wraparound belt (1) is located on the upper and lower sides of the wraparound belt (1), so that the shielding sheets (11) can shield the rotating frame shaft (41).

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