Catheter fixing device for gastrointestinal tumor surgery

Abstract

The catheter fixing device comprises a catheter limiting base and a catheter collecting mechanism, the catheter limiting base is used for fixing and limiting a main body section of a catheter and is provided with a central through hole, and the catheter limiting base comprises a dressing layer, an adhesive tape main body and a limiter; the catheter sequentially penetrates through the dressing layer, the adhesive tape body and the limiting stopper through the central through hole, the catheter binding mechanism comprises a binding mechanism and a clamping mechanism, and the clamping mechanism is clamped on the redundant section of the catheter and binds the redundant section through the binding mechanism. According to the technical scheme, the catheter limiting base is arranged on the adhesive tape for fixing the catheter, the annular base, the threaded section and the tightening nut are matched with one another, the threaded section is forced to deform by rotating the tightening nut so as to clamp the catheter, and the adhesive tape is used for connection, so that the fixing stability of the catheter is improved, and the catheter is prevented from shifting; the catheter collecting mechanism limits redundant sections of the catheter, so that the catheter can be collected together in a snakelike mode, and the situation that the catheter is wound and pulled to cause secondary injury to the patient is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of catheter fixing instruments, and in particular relates to a catheter fixing device for gastrointestinal tumor surgery. Background Art

[0002] The number of patients with gastrointestinal tumors is increasing year by year. Clinically, surgery and chemotherapy are used for this type of patients. After surgical treatment, the gastrointestinal digestive system needs to be repaired and cannot absorb enteral nutrition. At this time, parenteral nutrition support can maintain the nutritional needs of patients. Parenteral nutrition enters the human body through intravenous infusion. At the same time, chemotherapy also requires intravenous infusion of chemotherapy drugs. Therefore, patients with gastrointestinal tumors have a large demand for infusion therapy during the perioperative period. At this time, establishing a safe and stable venous access has a high practical value in ensuring the clinical efficacy of patients, and peripheral venous catheterization can adapt to the perioperative treatment needs of patients with gastrointestinal tumors.

[0003] At present, the fixation method for gastrointestinal tumor surgery catheters mainly relies on medical tape. An opening is made in the middle of the tape, and several thin tapes are wrapped around the outer ring of the catheter to fix the catheter and the large tape. However, this fixation method not only has the problem of poor connection stability, but also after replacing the new tape, a lot of adhesive will often remain on the surface of the catheter. At the same time, this fixation method has no way to limit the extra sections of the catheter, resulting in longer sections of the catheter having to be adhered to the skin or clothes by attaching tape. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a catheter fixing device for gastrointestinal tumor surgery to solve the deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention is achieved through the following technical solutions:

[0006] Provided is a catheter fixing device for gastrointestinal tumor surgery, comprising a catheter limiting base and a catheter contraction mechanism, wherein the catheter limiting base is used to fix and limit the main section of the catheter and has a central through hole, the catheter limiting base comprises a dressing layer, a tape body and a stopper, the catheter passes through the dressing layer, the tape body and the stopper in sequence through the central through hole, and the catheter contraction mechanism comprises a contraction mechanism and a clamping mechanism, the clamping mechanism is clamped on the redundant section of the catheter and contracted through the contraction mechanism.

[0007] As described in the catheter fixing device for gastrointestinal tumor surgery, wherein the limiter includes a connecting end and a tightening nut, the connecting end includes an annular base connected to the tape body, the annular base is provided with a threaded segment matched with the tightening nut on the side facing away from the tape body, and the tightening nut tightens the threaded segment during the process of screwing with the threaded segment.

[0008] For example, in the catheter fixing device for gastrointestinal tumor surgery, a magnetic ring is fixedly connected to the side of the dressing layer facing the tape body, and a magnet block magnetically attracted to the magnetic ring is fixedly connected to the side of the annular base facing the tape body.

[0009] As described in the catheter fixing device for gastrointestinal tumor surgery, wherein the clamping mechanism comprises a plurality of cylindrical catheter clamps, the outer circumferential surfaces of the catheter clamps are adjacent to each other in sequence to form a straight line and are juxtaposed, the folding mechanism comprises an insertion block and an insertion strip, the insertion block is arranged on the same side of the catheter clamp, the insertion block is provided with a through hole for the insertion strip to be inserted in a card-type manner, and a stop block is provided at one end of the insertion strip.

[0010] As described in the catheter fixing device for gastrointestinal tumor surgery, wherein the adhesive tape body is a butterfly-shaped adhesive tape.

[0011] The beneficial effects of the technical solution of the present invention are:

[0012] A catheter limiting base is set on the tape that fixes the catheter, and the annular base, threaded section and tightening nut cooperate with each other. The threaded section is forced to deform by rotating the tightening nut, thereby clamping the catheter, and the tape is used as a connection to improve the fixation stability of the catheter and prevent the catheter from shifting. The catheter contraction mechanism limits the excess sections of the catheter, allowing the catheter to be contracted together in a serpentine shape to prevent it from being entangled and pulled, causing secondary injuries to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] To further illustrate the above-mentioned objectives, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the catheter structure of a preferred embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the overall structure of a catheter fixing device according to a preferred embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the structure of a catheter limiting base in a preferred embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the structure of a stopper in a preferred embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the tightening nut structure of a preferred embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of the coordination of the clamping mechanism and the folding mechanism in a preferred embodiment of the present invention;

[0020] In the figure: 1. catheter; 2. central through hole; 3. dressing layer; 4. adhesive tape body; 5. stopper; 501. tightening nut; 502. annular base; 503. strip segment; 504. rubber sheet; 505. silicone ring; 506. cylindrical cavity; 507. magnet block; 508. connecting seat; 6. folding mechanism; 601. plug block; 602. plug strip; 603. through hole; 604. stop block; 605. connecting block; 7. clamping mechanism; 701. catheter clamp; 8. magnetic ring; 9. gasket. DETAILED DESCRIPTION

[0021] The terms "invention", "present invention" and "the present invention" used in this specification are intended to refer broadly to all subject matter of this specification and any patent claims below. Statements containing these terms should not be understood to limit the subject matter described herein or to limit the meaning or scope of any patent claim below. In addition, this specification does not attempt to describe or limit the subject matter covered by any claim of any specific component, paragraph, statement or figure of this application. The subject matter should be understood with reference to the entire specification, all drawings and any claims below. The present invention may have other embodiments and be practiced or implemented in other ways. Moreover, it should be understood that the words and terms used herein are for illustrative purposes and should not be considered as limiting.

[0022] The details of the present invention will now be discussed with reference to the accompanying drawings which illustrate the present invention by way of example only. In the accompanying drawings, similar features or components may be marked with the same reference numerals.

[0023] The use of "including," "having," and "comprising" and variations thereof herein is meant to encompass the items listed thereafter and their equivalents and additional items. Although reference may be made to directions such as above, below, upward, downward, rearward, bottom, top, front, rear, etc., in describing the drawings, for convenience, reference is made relative to the drawings. These directions are not intended to literally accept or limit the present invention in any form. In addition, terms such as "first," "second," "third," etc., are used herein for illustrative purposes and are not intended to indicate or imply importance or significance.

[0024] See also Figure 1 , Figure 2 , Figure 3As shown, the catheter fixing device for gastrointestinal tumor surgery of the present invention includes a catheter limiting base and a catheter contraction mechanism. The catheter limiting base fixes and limits the main section of the catheter 1 and has a central through hole 2. The catheter limiting base includes a dressing layer 3, a tape body 4 and a limiter 5. The catheter 1 passes through the dressing layer 3, the tape body 4 and the limiter 5 in sequence through the central through hole 2. The catheter contraction mechanism includes a contraction mechanism 6 and a clamping mechanism 7. The clamping mechanism 7 is clamped on the excess section of the catheter 1 and is contracted through the contraction mechanism 6.

[0025] See also Figure 3 , Figure 4 As shown, the limiter 5 includes a connecting end and a tightening nut 501. The connecting end includes an annular base 502 connected to the tape body 4. A threaded section matched with the tightening nut 501 is provided on the side of the annular base 502 facing away from the tape body 4. The tightening nut 501 tightens the threaded section during the screwing process with the threaded section. In a preferred embodiment, the threaded section is composed of six strips 503 arranged at equal intervals along the circumferential direction of the corresponding side surfaces of the annular base 502, and the mutual interval is preferably 0.5-0.7 cm. A rubber sheet 504 is fixed to the inner side of the strip 503, and 5-7 grooves are provided on the inner surface of the rubber sheet 504 to increase the friction with the outer ring surface of the catheter 1. The tightening nut 501 has a conical inner cavity with a threaded groove on the inner surface, and the outer surface of the strip 503 is provided with matching screw threads. See. Figure 5 As shown, the outer surface of the plastic tightening nut 501 is provided with 20-30 anti-slip grooves in an annular array, and the side of the tightening nut 501 facing away from the adhesive tape body 1 is fixedly connected with a silicone ring 505, and the silicone ring 505 is provided with 10-19 cylindrical cavities 506 in an annular array, and the cavities facilitate the deformation of the silicone ring 505, and the inner edge of the port of the silicone ring 505 facing away from the adhesive tape body 1 is chamfered. The longitudinal section of the conical inner cavity of the tightening nut 501 is an isosceles trapezoid, and the strip segment 503 is squeezed inward to deform and clamp the catheter 1 by screwing the tightening nut 501.

[0026] Continue to view Figure 2 As shown, the dressing layer 3 is fixedly connected to the side facing the adhesive tape body 4 with a magnetic ring 8, and the annular base 502 is fixedly connected to the side facing the adhesive tape body 4 with a magnet block 507 that is magnetically attracted to the magnetic ring 8. Further, a groove is provided on the side surface of the dressing layer 3, a liner 9 is fixed in the groove, and the magnetic ring 8 is embedded in the liner 9. Figure 4 As shown, connecting seats 508 are arranged at equal intervals on the outer peripheral surface of the annular base 502, and the magnet blocks 507 are fixedly connected to the connecting seats 508 by adhesive.

[0027] See also Figure 2 , Figure 6As shown, the clamping mechanism 7 includes a plurality of cylindrical catheter clamps 701, the outer circumferences of which are adjacent to each other in sequence to form a straight line, and the folding mechanism 6 includes an insert block 601 and an insert strip 602, the insert block 601 is arranged on the same side of the catheter clamp 701, and the insert block 601 is provided with a through hole 603 for inserting the insert strip 602 in a clip-on manner. The so-called "clip-on insertion" means that the insert strip 602 will rub against the inner wall of the through hole 603 when inserted. A stop block 604 is provided at one end of the insert strip 602, and a layer of silicone is adhered to the outer surface of the insert strip 602 by an adhesive. Furthermore, a connecting block 605 is provided between the insert block 601 and the catheter clamp 701. The redundant sections of the catheter 1 are clamped by a plurality of catheter clamps 701 as shown in the figure, and present a serpentine state.

[0028] The adhesive tape body 1 is a butterfly-shaped adhesive tape. A medical adhesive layer is applied to the surface of the butterfly-shaped adhesive tape facing the dressing layer 3, and two adhesive strips are fixedly connected to the left and right sides of the butterfly-shaped adhesive tape. The surface of the butterfly-shaped adhesive tape facing the dressing layer 3 is attached to the skin at the edge of the wound of the human body. The dressing layer 3 is preferably a dressing cotton layer.

[0029] Usage process:

[0030] The butterfly tape is attached to the skin at the edge of the patient's wound, and the dressing layer 3 is in contact with the wound surface. At the same time, the catheter 1 passes through the dressing layer 3, the butterfly tape, and the stopper 5, and the magnet blocks 507 and the magnetic ring 8 on the connecting seat 508 are used to adsorb and fix the posture of the annular base 502. At the same time, the tightening nut 501 is rotated and slowly moved on the strip segment 503, so that the strip segment 503 is squeezed and deformed inward through the conical inner cavity. At this time, the rubber sheet 504 will slowly contact the outer ring surface of the catheter 1 and clamp the catheter 1, so that the catheter 1 is fixed at the current position to prevent the catheter 1 from being pulled and displaced.

[0031] When the catheter 1 is bent, the outer surface of the catheter 1 contacts the arc surface of the end of the silicone ring 505, so that the arc chamfered surface at the front end of the silicone ring 505 and the cylindrical cavity 506 are used to buffer the catheter 1, thereby preventing the catheter 1 from bending too much. In addition, when the section of the catheter 1 outside the human body is too long, the catheter clamp 701 is clamped on the catheter 1 in turn, and the insertion strip 602 is inserted into the through hole 603 of the insertion block 601. The friction between the insertion strip 602 and the insertion block 601 is used to achieve relative fixation of the catheter clamp 701, so that the excess section of the catheter 1 can maintain a snake-shaped convergence posture.

[0032] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A catheter fixing device for gastrointestinal tumor surgery, characterized in that: It includes a catheter limiting base and a catheter contraction mechanism, wherein the catheter limiting base is used to fix and limit the main section of the catheter and has a central through hole, the catheter limiting base includes a dressing layer, a tape body and a limiter, the catheter passes through the dressing layer, the tape body and the limiter in sequence through the central through hole, and the catheter contraction mechanism includes a contraction mechanism and a clamping mechanism, wherein the clamping mechanism is clamped on the redundant section of the catheter and contracted through the contraction mechanism.

2. The catheter fixing device for gastrointestinal tumor surgery according to claim 1, characterized in that: The limiter includes a connecting end and a tightening nut. The connecting end includes an annular base connected to the tape body. The side of the annular base facing away from the tape body is provided with a threaded section that is compatible with the tightening nut. The tightening nut tightens the threaded section during the process of screwing with the threaded section.

3. The catheter fixing device for gastrointestinal tumor surgery as claimed in claim 2, characterized in that: A magnetic ring is fixedly connected to one side of the dressing layer facing the adhesive tape body, and a magnet block that is magnetically attracted to the magnetic ring is fixedly connected to one side of the annular base facing the adhesive tape body.

4. The catheter fixing device for gastrointestinal tumor surgery according to claim 1, characterized in that: The clamping mechanism includes a plurality of cylindrical catheter clamps, the outer circumferential surfaces of the catheter clamps are adjacent to each other in sequence to form a straight line and are juxtaposed. The folding mechanism includes an insertion block and an insertion strip. The insertion block is arranged on the same side of the catheter clamp, and a through hole is provided on the insertion block for the insertion strip to be inserted in a card-type manner. A stop block is provided at one end of the insertion strip.

5. The catheter fixing device for gastrointestinal tumor surgery according to claim 1, characterized in that: The adhesive tape body is a butterfly-shaped adhesive tape.

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