An anti-winding device for oncology catheters

Abstract

The present invention belongs to the field of medical device technology, and specifically provides an anti-winding device for oncology catheters, including an instrument box, a terminal limiter is provided on the upper wall of the instrument box, a flexible cluster tube belt is provided on the terminal limiter, and the end of the flexible cluster tube belt away from the terminal limiter is spherically hinged with a fixer. The present invention uses a flexible clustering method to constrain the catheter, and cooperates with a simple and efficient tube threader to automatically tighten and pull the catheter. Each catheter is constrained and restricted by a flexible sleeve with a catheter groove, which significantly reduces the possibility of the catheters being cross-entangled with each other, and airflow is introduced into the flexible cluster tube belt. One airflow adsorbs the catheter along the entire path of the flexible cluster tube belt, further reducing the risk of the catheter falling off. The other airflow is transported along the flexible cluster tube belt to the contact point between the fixator and the patient's skin to ventilate the patient's skin, significantly reducing the risk of allergies and pressure sores caused by catheter fixation.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to an anti-winding device for oncology catheters. Background Art

[0002] During tumor treatment, various catheters usually need to be placed in the patient's body to facilitate drug delivery, drainage, and nursing care. However, the exposed parts of various catheters are difficult to effectively fix. If the exposed parts of the catheters are directly fixed, it will affect the patient's body movements and easily cause the tube to fall off. If the catheters are not fixed, when the patient moves his body, the catheters are prone to crossing and entanglement, affecting the patency of the catheters.

[0003] Although some existing technologies can constrain tumor catheters to prevent cross-entanglement, the following problems are common:

[0004] (1) All types of catheters are independently constrained, that is, each catheter is constrained separately, and the restraining device is generally made of rigid material. The catheter is rigidly constrained and difficult to adapt to the movement of the patient's body. It is very inconvenient for the patient to move his body, and it is easy for the catheter to be detached or the patient to be injured due to traction;

[0005] (2) Various catheters lack flexible clustering constraints, resulting in bulky and impractical restraint devices;

[0006] (3) The process of inserting the catheter into the restraint device is relatively cumbersome and requires manual clamping of the catheter to pass through the restraint device, which is inefficient. In addition, the catheter fixation effect is poor and the catheter is easily detached from the restraint device.

[0007] (4) Since the catheter fixation process usually takes a long time, the part of the patient's body that contacts the restraint device is in a poorly ventilated environment for a long time, which can easily lead to skin allergies or pressure sores. Summary of the Invention

[0008] In response to the above technical problems, the present invention provides an anti-entanglement device for oncology catheters, which uses a flexible bundling method to constrain the catheter, and cooperates with a simple and efficient tube threader to automatically tighten and pull the catheter. The flexible sleeve with a catheter groove is used to constrain each catheter, which significantly reduces the possibility of the catheters being cross-entangled with each other. Air flow is introduced into the flexible bundled tube belt, and one air flow adsorbs the catheter along the entire path of the flexible bundled tube belt, further reducing the risk of the catheter falling off. The other air flow is transported along the flexible bundled tube belt to the contact point between the fixator and the patient's skin to ventilate the patient's skin, significantly reducing the risk of allergies and pressure sores caused by catheter fixation.

[0009] The technical solution adopted by the present invention is as follows: This solution provides an anti-winding device for oncology catheters, the main structure of the device is an instrument box, the upper wall of the instrument box is provided with a terminal limiter, the terminal limiter is provided with a flexible bundled tube belt, the end of the flexible bundled tube belt away from the terminal limiter is spherically hinged with a fixer, a tray is movably provided in the instrument box for storing catheter insertion instruments, the lower wall of the instrument box is provided with universal wheels for easy movement of the device, the terminal limiter includes a telescopic rod, a spherical shell A, a ball head rod A and a catheter limiting disk A, the telescopic rod is vertically fixed to the upper wall of the instrument box, the spherical shell A is fixed to the output end of the telescopic rod, the lower end of the ball head rod A is universally hinged in the spherical shell A, the catheter limiting disk A is fixed to the upper end of the ball head rod A, the flexible bundled tube belt includes an end, a fan, a steel wire hose, a flexible sleeve, an air supply pipe and a pipe threader, and the end is fixed to the outer wall of the ball head rod A, The fan is fixed on the end head, one end of the steel wire hose is passed through the end head and is connected with the suction end of the fan, the flexible sleeve is sleeved on the outer wall of the steel wire hose, one end of the air supply pipe is passed through the end head and is connected with the air outlet end of the fan, the middle part of the air supply pipe is passed through the flexible sleeve, the pipe threader is detachably sleeved on the flexible sleeve, the end of the steel wire hose away from the fan is fixed with a ball head rod B, the lower end of the ball head of the ball head of the ball head rod B is penetrated by a blowing hole A, the end of the air supply pipe away from the fan passes through the side wall of the ball head rod B and is connected with the blowing hole A, a duct limit disk B is fixed on the ball head rod B, and a limiting groove is provided in a ring array on the outer wall of the circumference of the duct limit disk B, the fixer includes a ball shell B, a fixing seat and a strap, the ball shell B is universally rotatable sleeved on the outer wall of the ball head at the lower end of the ball head rod B, the fixing seat is fixed on the lower end of the ball shell B, and the straps are symmetrically distributed at both ends of the fixing seat.

[0010] In this solution, a circular array of catheter grooves is opened on the circumferential outer wall of the flexible sleeve. The catheter grooves are arranged along the axial direction of the flexible sleeve. The catheter grooves are composed of a circular groove and a traction groove. The circular groove is located inside the flexible sleeve. The inside of the traction groove is connected to the circular groove. The outside of the traction groove passes through the outer wall of the flexible sleeve. The catheter is pulled into the circular groove by a tube threader. The width of the traction groove is smaller than the circular groove, which constrains the catheter and prevents it from escaping from the catheter groove.

[0011] As a further preference of this scheme, the tube threader includes a fracture ring, a connecting piece, a traction needle, a top ring and a self-anchoring strip. The fracture ring is detachably movably sleeved on the outer wall of the flexible sleeve. The fracture ring is provided with a fracture, and the fracture width is larger than the outer diameter of the steel wire hose, so that the fracture ring can be disassembled. The connecting piece is fixedly arranged on the inner circumferential wall of the fracture ring, the traction needle is fixedly arranged on the connecting piece, the top ring is slidably sleeved on the traction needle, and the self-anchoring strips are distributed in a circular array and connected to the top ring. The end of the self-anchoring strip away from the top ring is fixedly connected to the lower end of the traction needle. The self-anchoring strip is made of flexible material. When in use, the connecting piece passes through the traction groove, and the traction needle enters the circular groove to pull the catheter.

[0012] In order to reliably restrain the catheter and further prevent the catheter from escaping from the catheter groove, an array of suction holes are opened on the steel wire hose. The suction holes correspond to the circular groove and pass through the bottom wall of the circular groove. The steel wire hose and the circular groove are connected through the suction holes.

[0013] Furthermore, the interior of the fixing seat is hollow, and a blowing hole B is provided on the inner bottom wall of the spherical shell B. The air supply pipe is connected to the interior of the fixing seat through the blowing hole A and the blowing hole B. Ventilation holes are distributed in an array throughout the bottom wall of the fixing seat to ventilate the patient's skin.

[0014] The beneficial effects achieved by the present invention are as follows:

[0015] (1) The flexible bundled tube belt in the present invention uses a flexible bundled method to constrain the catheter, and cooperates with a simple and efficient tube threader to automatically tighten and pull the catheter. The flexible sleeve with a catheter groove is used to constrain each catheter, which significantly reduces the possibility of the catheters crossing and entangled with each other. Air flow is introduced into the flexible bundled tube belt, and one air flow adsorbs the catheter along the entire path of the flexible bundled tube belt, further reducing the risk of the catheter falling off. The other air flow is transported along the flexible bundled tube belt to the contact point between the fixator and the patient's skin, ventilating the patient's skin, significantly reducing the risk of allergies and pressure sores caused by catheter fixation;

[0016] (2) The width of the fracture on the fracture ring is larger than the outer diameter of the steel hose, so that the fracture ring can be disassembled, making it easier to lay and pull the catheter;

[0017] (3) The cooperation between the traction needle, the top ring and the self-anchoring strip enables the traction needle to be easily inserted into and removed from the catheter. As the broken ring pulls, the self-anchoring strip can automatically bend inside the catheter, thereby expanding and locking the catheter, making it easier to pull.

[0018] (4) The suction holes in the inner area of ​​the flexible sleeve adsorb the catheter, thereby effectively preventing the catheter from falling out of the catheter groove. The gas blown out through the ventilation holes ventilates the patient's skin, avoiding the risk of skin allergies and pressure sores. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of an anti-winding device for oncology catheters proposed by the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of an anti-winding device for oncology catheters proposed by the present invention. Figure 2 ;

[0021] Figure 3 for Figure 2 A partial enlarged view of the M part;

[0022] Figure 4 for Figure 2 A local enlarged view of part N in FIG;

[0023] Figure 5 It is a side cross-sectional view of the connection between the flexible bundled tube belt and the fixer in the present invention;

[0024] Figure 6 A cross-sectional view of the flexible bundled tube belt proposed in the present invention at the tube threader;

[0025] Figure 7 This is a schematic structural diagram of the pipe threader proposed in the present invention.

[0026] Among them, 1. Instrument box, 11. Tray, 12. Universal wheel, 2. Terminal stopper, 21. Telescopic rod, 22. Ball shell A, 23. Ball head rod A, 24. Catheter limit plate A, 241. Limit hole, 3. Flexible bundled tube belt, 31. End, 32. Fan, 33. Steel wire hose, 331. Ball head rod B, 332. Blowing hole A, 333. Catheter limit plate B, 334. Limit slot, 335. Suction hole, 34, flexible sleeve, 341, catheter groove, 342, round groove, 343, traction groove, 35, air supply pipe, 36, pipe threader, 361, break ring, 362, connecting piece, 363, traction needle, 364, top ring, 365, self-anchoring strip, 4, fixer, 41, spherical shell B, 411, blowing hole B, 42, fixing seat, 421, ventilation hole, 422, auxiliary fixing plate, 43, strap.

[0027] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0028] Example 1: Please refer to Figure 1-Figure 5The present embodiment provides an anti-winding device for oncology catheters. The main structure of the device is an instrument box 1. The upper wall of the instrument box 1 is provided with a terminal limiter 2. The terminal limiter 2 is provided with a flexible bundled tube belt 3. The end of the flexible bundled tube belt 3 away from the terminal limiter 2 is spherically hinged with a fixer 4. A tray 11 is movably provided in the instrument box 1 for storing catheter insertion instruments. The lower wall of the instrument box 1 is provided with a universal wheel 12 to facilitate moving the device. The terminal limiter 2 includes a telescopic rod 21, a ball shell A22, a ball head rod A23 and a catheter limit disk A24. The telescopic rod 21 is vertically fixed on the upper wall of the instrument box 1. The ball shell A22 is fixed to the output end of the telescopic rod 21, the lower end of the ball rod A23 is universally hinged in the ball shell A22, the catheter limit plate A24 is fixed to the upper end of the ball rod A23, and the catheter limit plate A24 has a ring array of limit holes 241. The flexible bundled tube belt 3 includes an end 31, a fan 32, a steel hose 33, a flexible sleeve 34, an air supply pipe 35 and a pipe threader 36. The end 31 is fixed to the outer wall of the ball rod A23, the fan 32 is fixed to the end 31, and one end of the steel hose 33 is passed through the end 31 and is connected to the suction end of the fan 32. The flexible sleeve 34 is sleeved on the outer wall of the steel hose 33. The flexible sleeve 34 is made of rubber. One end of the air supply pipe 35 is penetrated on the end head 31 and is connected to the air outlet end of the fan 32. The middle part of the air supply pipe 35 is penetrated in the flexible sleeve 34. The pipe threader 36 is detachably sleeved on the flexible sleeve 34. The end of the steel hose 33 away from the fan 32 is fixed with a ball head rod B331. The lower end of the ball head of the ball head rod B331 is penetrated with a blowing hole A332. The end of the air supply pipe 35 away from the fan 32 penetrates the side wall of the ball head rod B331 and is connected to the blowing hole A332. The ball head rod B33 1 is fixedly provided with a catheter limiting disk B333, and a ring array of limiting grooves 334 are provided on the circumferential outer wall of the catheter limiting disk B333. The fixer 4 includes a spherical shell B41, a fixing seat 42 and a binding strap 43. The spherical shell B41 is universally rotatably sleeved on the outer wall of the ball head at the lower end of the ball head rod B331. The fixing seat 42 is fixedly provided at the lower end of the spherical shell B41. The binding straps 43 are symmetrically distributed at both ends of the fixing seat 42. The binding straps 43 are provided with Velcro (not shown in the figure) to facilitate binding and fixing the fixer 4. Auxiliary fixing plates 422 are symmetrically fixed on the outer wall of the fixing seat 42 to facilitate fixing with tape.

[0029] like Figure 3-Figure 6 As shown, a circular array of catheter grooves 341 are provided on the circumferential outer wall of the flexible sleeve 34. The catheter grooves 341 are arranged along the axial direction of the flexible sleeve 34. The catheter grooves 341 are composed of a circular groove 342 and a traction groove 343. The circular groove 342 is located inside the flexible sleeve 34. The interior of the traction groove 343 is connected to the circular groove 342. The exterior of the traction groove 343 penetrates the outer wall of the flexible sleeve 34. The catheter is pulled into the circular groove 342 through the tube threader 36. The width of the traction groove 343 is smaller than the circular groove 342, which constrains the catheter and prevents it from escaping from the catheter groove 341.

[0030] like Figure 4-Figure 7 As shown, the tube threader 36 includes a break ring 361, a connecting piece 362, a traction needle 363, a top ring 364 and a self-anchoring strip 365. The break ring 361 is detachably movably sleeved on the outer wall of the flexible sleeve 34. The break ring 361 is provided with a break, the width of the break is greater than the outer diameter of the wire hose 33, so that the break ring 361 can be disassembled, the connecting piece 362 is fixedly arranged on the inner circumferential wall of the break ring 361, the traction needle 363 is fixedly arranged on the connecting piece 362, the top ring 364 is slidably sleeved on the traction needle 363, and the self-anchoring strips 365 are distributed in a circumferential array and connected to the top ring 364. The end of the self-anchoring strip 365 away from the top ring 364 is fixedly connected to the lower end of the traction needle 363. The self-anchoring strip 365 is made of nylon-66 (polyhexamethylene adipamide). When in use, the connecting piece 362 passes through the traction groove 343, and the traction needle 363 enters the circular groove 342 to pull the catheter.

[0031] like Figure 5 、 Figure 6 As shown, in order to reliably restrain the catheter and further prevent the catheter from escaping from the catheter groove 341, an array of suction holes 335 are opened on the steel wire hose 33. The suction holes 335 in the internal area of ​​the flexible sleeve 34 correspond to the circular groove 342 and pass through the inner bottom wall of the circular groove 342. The steel wire hose 33 and the circular groove 342 are connected through the suction holes 335.

[0032] like Figure 5 As shown, the interior of the fixing seat 42 is hollow, and a blowing hole B411 is provided on the inner bottom wall of the spherical shell B41. The lower end of the blowing hole B411 passes through the top wall of the fixing seat 42. The air supply pipe 35 is connected with the interior of the fixing seat 42 through the blowing hole A332 and the blowing hole B411. After the ball head rod B331 rotates in the spherical shell B41, the blowing hole A332 and the blowing hole B411 are always connected. Ventilation holes 421 are distributed in an array through the bottom wall of the fixing seat 42, and the ventilation holes 421 ventilate the patient's skin.

[0033] The specific usage of this embodiment is as follows:

[0034] Push the instrument box 1 to the patient's bedside, use the strap 43 to tie the fixator 4 to the patient, adjust the position of the terminal limiter 2, directly pull and twist the catheter limit disk A24, the telescopic rod 21 telescopes to adjust the height of the catheter limit disk A24, and the ball head rod A23 rotates in the ball shell A22 to adjust the angle of the catheter limit disk A24.

[0035] The process of passing the catheter from the patient's body to the catheter stopper A24 is as follows:

[0036] The medical staff inserts the tube inserter 36 into the steel hose 33 at the ball head rod B331. Since the width of the break ring 361 is larger than the outer diameter of the steel hose 33, the tube inserter 36 can be smoothly put on the steel hose 33. Then the end of the traction needle 363 is inserted into the end of the catheter. At this time, the top ring 364 slides upward (to the maximum) under the friction between the inner wall of the catheter and the self-anchoring strip 365. Figure 7 For example), the self-anchoring strip 365 is gathered around the traction needle 363, so the traction needle 363 can be smoothly inserted into the end of the catheter, and then the tube threader 36 is slowly pulled along the direction of the wire hose 33, and the traction needle 363 follows the movement. Due to the friction between the inner wall of the catheter and the self-anchoring strip 365, the top ring 364 moves slowly, and the lower end of the traction needle 363 gradually approaches the top ring 364, and the self-anchoring strip 365 is bent outward, expanding the inner wall of the catheter, making the friction between the inner wall of the catheter and the self-anchoring strip 365 greater, and the traction needle 363 cooperates with the self-anchoring strip 365 to automatically tighten the catheter, making it easier to pull the catheter.

[0037] During the pulling process, the traction needle 363 and the catheter need to be firstly inserted into one of the catheter grooves 341 on the outer wall of the flexible sleeve 34, that is, the connecting piece 362 enters the traction groove 343, and the traction needle 363 and the catheter enter the circular groove 342. Then the catheter can be pulled until the tube threader 36 moves to the end of the flexible sleeve 34 close to the end 31. At this time, the medical staff pulls the tube threader 36 over the flexible sleeve 34 to complete the catheter traction layout, and rotates the angle of the tube threader 36 appropriately so that the broken ring 361 of the tube threader 36 can leave the steel wire hose 33, and then at the end position of the catheter, outward ( Figure 7 The catheter can be easily removed by pulling up the top ring 364 in the upward direction to contract the anchor bar 365. The catheter is then passed through the limiting hole 241 and locked. The lower end of the catheter is inserted into the limiting groove 334 to prevent the catheter from loosening.

[0038] Subsequent catheters are pulled and laid in the same manner. For catheters that need to be pulled from the terminal limiter 2 to the fixer 4, the pulling method is the same, except that the tube threader 36 is used in reverse. The laid catheters are constrained in the flexible sleeve 34 to avoid the possibility of mutual entanglement.

[0039] After the catheter is laid, in order to reduce the risk of the catheter falling off, the fan 32 is started, and the gas is sucked into the wire hose 33 through the suction hole 335, and is transported to the blowing hole A332 through the air supply pipe 35, and then enters the fixing seat 42 through the blowing hole B411, and is blown out from the ventilation hole 421. During this process, the suction hole 335 in the internal area of ​​the flexible sleeve 34 adsorbs the catheter, thereby effectively preventing the catheter from falling off the catheter groove 341, and the gas blown out through the ventilation hole 421 ventilates the patient's skin, avoiding the risk of skin allergies and pressure sores.

[0040] The present invention and its embodiments are described above. Such description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto.

Claims

1. An anti-winding device for an oncology catheter, comprising an instrument box (1) and a terminal stopper (2), wherein the terminal stopper (2) is arranged on the upper wall of the instrument box (1), and is characterized in that: The flexible bundled tube belt (3) and the fixing device (4) are also included. One end of the flexible bundled tube belt (3) is arranged on the terminal stopper (2). The fixing device (4) is spherically hinged to the end of the flexible bundled tube belt (3) away from the terminal stopper (2). The flexible bundled tube belt (3) includes an end (31), a fan (32), a steel hose (33), a flexible sleeve (34), an air supply pipe (35) and a pipe threader (36). The end (31) is fixed to the terminal. The fan (32) is fixed on the end (31), one end of the steel hose (33) is provided through the end (31) and is connected to the air suction end of the fan (32), the flexible sleeve (34) is sleeved on the outer wall of the steel hose (33), one end of the air supply pipe (35) is provided through the end (31) and is connected to the air outlet end of the fan (32), and the pipe threader (36) is detachably sleeved on the flexible sleeve (34).

2. The oncology catheter anti-winding device according to claim 1, characterized in that: An annular array of conduit grooves (341) is provided on the circumferential outer wall of the flexible sleeve (34).

3. The oncology catheter anti-winding device according to claim 2, characterized in that: The tube threader (36) comprises a fracture ring (361), a connecting piece (362), a traction needle (363), a top ring (364) and a self-anchoring strip (365); the fracture ring (361) is detachably mounted on the outer wall of the flexible sleeve (34); the connecting piece (362) is fixedly mounted on the inner circumferential wall of the fracture ring (361); the traction needle (363) is fixedly mounted on the connecting piece (362); the top ring (364) is slidably mounted on the traction needle (363); the two ends of the self-anchoring strip (365) are respectively fixedly connected to the side wall of the top ring (364) and the lower end of the traction needle (363); an array of air suction holes (335) is provided on the upper surface of the steel wire hose (33); the air suction holes (335) correspond to the catheter groove (341) and penetrate the inner bottom wall of the catheter groove (341).

4. The oncology catheter anti-winding device according to claim 1, characterized in that: A ball rod B (331) is fixedly provided at the end of the steel wire hose (33) away from the fan (32).

5. The oncology catheter anti-winding device according to claim 4, characterized in that: The holder (4) comprises a ball shell B (41) and a fixing seat (42). The ball shell B (41) is universally rotatably sleeved on the outer wall of the ball head at the lower end of the ball head rod B (331), and the fixing seat (42) is fixedly arranged on the lower end of the ball shell B (41).

6. The oncology catheter anti-winding device according to claim 5, characterized in that: The interior of the fixing seat (42) is hollow, and the air supply pipe (35) is connected to the interior of the fixing seat (42) through the ball head rod B (331) and the ball shell B (41).

7. The oncology catheter anti-winding device according to claim 5, characterized in that: The bottom wall of the fixing seat (42) is provided with ventilation holes (421) distributed in an array and extending therethrough.

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