Film-sealed medicine storage degradable catheter

Abstract

The invention discloses a film-sealed medicine storage degradable catheter which comprises a catheter body with a film-sealed medicine storage structure, a first locking component is installed on the outer wall of the catheter body and can freely move or be locked and fixed on the catheter body, a second locking component is installed on the first locking component, and the second locking component can freely move or be locked and fixed on the catheter body. The first locking part is fixed to the wrist of the human body through the second locking part, the upper clamping plate and the lower clamping plate are pushed to move on the pipe body, the upper clamping plate and the lower clamping plate are drawn close to clamp and fix the pipe body by adjusting the locking bolt, and then one end of the connecting belt penetrates through the penetrating hole and is folded back. The pipe body can be fixed to the wrist by pasting the hook-and-loop fastener son face and the hook-and-loop fastener mother face, the pipe body can be effectively fixed to the wrist through cooperative use of the first locking component and the second locking component, and the stability, comfort and flexibility of fixing the pipe body to the wrist are improved.

Description

Technical Field

[0001] The invention relates to the technical field of degradable catheters, in particular to a membrane-sealed drug-storing degradable catheter. Background Art

[0002] The membrane-sealed drug storage biodegradable catheter is a new type of medical catheter that combines the characteristics of drug storage, local drug delivery and biodegradable materials. It is mainly composed of a tube body and a membrane-sealed drug storage structure. The tube body is used to insert into the human body and deliver drugs to the lesion site, and its outer wall usually has parts that are easy to fix; the membrane-sealed drug storage structure is a space for storing drugs formed at a specific part of the catheter, and there is a layer of membrane that seals the drugs in it. This membrane can control the release of the drugs. At the same time, the entire catheter is made of biodegradable materials. After completing the drug delivery and treatment tasks, it can gradually decompose in the body environment and be metabolized and absorbed by the human body or excreted from the body.

[0003] The insertion methods of membrane-sealed drug-storage biodegradable catheters generally include vascular intervention and non-vascular intervention. In the vascular intervention, doctors will choose to insert the catheter in the patient's groin and wrist. Compared with puncturing the femoral artery in the groin, the patient's postoperative recovery is often faster after puncturing the radial artery at the wrist for intervention. The wound after wrist puncture is relatively small, causing less trauma to the patient's body and a relatively low risk of bleeding. Patients can get up and move around quickly after surgery, reducing the risk of a series of complications such as deep vein thrombosis that may be caused by long-term bed rest.

[0004] For some catheters that need to remain in the body for a period of time, the catheters must be properly fixed to prevent them from shifting. The traditional fixation method is to use medical tape, sutures, etc. to fix the catheter in a suitable position on the body surface. The viscosity of the medical tape will be affected by many factors. For example, when the patient's skin sweats or has secretions, the viscosity of the tape will decrease, which can easily cause the catheter to shift and reduce the stability of the catheter fixation. In addition, using tape to fix the catheter for a long time may cause damage to the skin. Using sutures for fixation requires using needles and threads to pass through the skin, which will directly damage the skin and increase the patient's pain and infection risk. In addition, after the sutures are fixed, the position of the catheter is basically fixed, and it is difficult to make flexible adjustments. Summary of the invention

[0005] The purpose of the present invention is to provide a membrane-sealed degradable catheter for storing drugs, so as to solve the problem that the method for fixing the membrane-sealed degradable catheter for storing drugs in the prior art is to use medical tape, sutures, etc. to fix the catheter at a suitable position on the body surface, which can easily cause displacement of the catheter, reduce the stability of catheter fixation, and may cause damage to the skin. It will directly cause damage to the skin, increase the patient's pain and infection risk, and the position of the catheter is basically fixed, making it difficult to flexibly adjust.

[0006] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the present invention include: a membrane-sealed drug storage degradable catheter, comprising: a tube body with a membrane-sealed drug storage structure, a first locking component is installed on the outer wall of the tube body, the first locking component can move freely or be locked and fixed on the tube body, a second locking component is installed on the first locking component, and the first locking component is fixed to the human wrist through the second locking component.

[0007] As a preferred technical solution, the first locking component includes an upper clamping plate, a lower clamping plate and a locking bolt, and the upper clamping plate and the lower clamping plate are connected by the locking bolt;

[0008] The clamping surfaces of the upper clamping plate and the lower clamping plate are in an arc-shaped structure that matches the outer shape of the tube body, and the tube body is fixedly clamped between the upper clamping plate and the lower clamping plate.

[0009] As a preferred technical solution, rubber pads are fixedly mounted on the clamping surfaces of the upper clamping plate and the lower clamping plate, respectively, and the rubber pads are in contact with the outer wall of the tube body.

[0010] As a preferred technical solution, the second locking component includes a connecting belt, one end of which is fixedly mounted on one end of the lower part of the lower splint, and a through hole is provided at the other end of the lower part of the lower splint. A Velcro sub-surface is fixedly mounted on one end of the back side of the connecting belt, and a Velcro mother surface is fixedly mounted on the other end. One end of the connecting belt passes through the through hole and is folded back so that the Velcro sub-surface and the Velcro mother surface are connected and fixed.

[0011] As a preferred technical solution, an arc-shaped groove is provided at the bottom of the lower clamping plate.

[0012] As a preferred technical solution, a first silicone pad is fixedly installed inside the arc-shaped groove.

[0013] As a preferred technical solution, a second silicone pad is fixedly installed on the inner side of the connecting belt.

[0014] As a preferred technical solution, one end of the connecting belt is fixedly connected to a through-plug, and the through-plug is a plastic structure.

[0015] As a preferred technical solution, the connecting belt is an elastic belt.

[0016] As a preferred technical solution, the locking bolt is a handle bolt.

[0017] The present invention has at least the following beneficial effects:

[0018] The present invention provides a membrane-sealed drug storage biodegradable catheter. The upper splint and the lower splint are separated by adjusting the locking bolt, and then the upper splint and the lower splint are pushed to move on the tube body, and the upper splint and the lower splint are pushed to the insertion port of the tube body inserted into the skin near the wrist, and then the locking bolt is adjusted again to make the upper splint and the lower splint come closer to clamp and fix the tube body, and then one end of the connecting belt is passed through the perforation and folded back, and the tube body can be fixed on the wrist by sticking the Velcro sub-surface and the Velcro mother surface, that is, the fixation of the tube body is completed, and the first locking component and the second locking component are used in combination to effectively fix the tube body on the wrist, thereby improving the stability, comfort and flexibility of the tube body fixed on the wrist. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A three-dimensional diagram of the membrane-sealed drug storage degradable catheter of the present invention;

[0021] Figure 2 It is a front view of the membrane-sealed drug storage degradable catheter of the present invention;

[0022] Figure 3 This is a schematic structural diagram of the first locking component of the membrane-sealed drug storage degradable catheter of the present invention;

[0023] Figure 4 Schematic diagram of the second locking component structure of the membrane-sealed drug storage biodegradable catheter of the present invention.

[0024] Description:

[0025] 1. Tube body; 2. Upper splint; 3. Lower splint; 301. Perforation; 302. Arc-shaped groove; 4. Locking bolt; 5. Connecting belt; 501. Velcro sub-surface; 502. Velcro mother surface; 6. Rubber pad; 7. First silicone pad; 8. Second silicone pad; 9. Through-plug. DETAILED DESCRIPTION

[0026] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] Example

[0028] Please refer to Figures 1 to 4As shown, the present embodiment provides a membrane-sealed drug storage degradable catheter, comprising: a tube body 1 with a membrane-sealed drug storage structure, a first locking component is installed on the outer wall of the tube body 1, the first locking component can move freely or be locked and fixed on the tube body 1, a second locking component is installed on the first locking component, the first locking component is fixed to the wrist of the human body through the second locking component, and can move freely or be locked and fixed on the tube body 1 through the first locking component, so that after the tube body 1 is inserted into the human body, its position on the tube body 1 can be accurately adjusted according to actual needs, and then locked and fixed, for example, when it is necessary to accurately fix the tube body 1 at the body surface position corresponding to the lesion site, it can be flexibly operated to ensure that the tube body 1 is accurately and firmly positioned, which is conducive to the accurate delivery of the drug to the lesion area, in addition, different patients have different body structures and treatment needs, and this movable and locking design can better adapt to individual conditions, whether it is a child or an adult, by adjusting the position of the first locking component on the tube body 1, the best fit with the wrist can be achieved, thereby improving the effectiveness and comfort of fixation.

[0029] Among them, the first locking component includes an upper clamp plate 2, a lower clamp plate 3 and a locking bolt 4, and the upper clamp plate 2 and the lower clamp plate 3 are connected by the locking bolt 4; wherein, the clamping surfaces of the upper clamp plate 2 and the lower clamp plate 3 are in an arc-shaped structure that matches the outer shape of the tube body 1, and the tube body 1 is fixedly clamped between the upper clamp plate 2 and the lower clamp plate 3, and the upper clamp plate 2 and the lower clamp plate 3 are connected by the locking bolt 4, thereby increasing the stability of the connection between the upper clamp plate 2 and the lower clamp plate 3, and by setting the clamping surface with an arc-shaped structure, the tube body 1 can be tightly and firmly clamped in the middle, preventing the tube body 1 from shifting or shaking during activity or accidental collision, thereby ensuring the stability of the position of the tube body 1.

[0030] Among them, rubber pads 6 are fixedly installed on the clamping surfaces of the upper clamping plate 2 and the lower clamping plate 3 respectively, and the rubber pads 6 are in contact with the outer wall of the tube body 1. The rubber pads 6 can increase the friction force of the upper clamping plate 2 and the lower clamping plate 3 on the tube body 1, and further increase the stability of clamping the tube body 1. In addition, the rubber pads 6 play a role of buffering and protection, avoiding wear, scratches and other damages that may be caused by direct hard contact between the tube body 1 and the upper clamping plate 2 and the lower clamping plate 3.

[0031] Among them, the second locking component includes a connecting belt 5, one end of the connecting belt 5 is fixedly installed on one end of the lower part of the lower splint 3, and the other end of the lower part of the lower splint 3 is provided with a through hole 301, one end of the back side of the connecting belt 5 is fixedly installed with a Velcro sub-surface 501, and the other end is fixedly installed with a Velcro mother surface 502, one end of the connecting belt 5 passes through the through hole 301 and is folded back so that the Velcro sub-surface 501 and the Velcro mother surface 502 are connected and fixed, and the connecting belt 5 is passed through the through hole 301 and folded back, and the Velcro sub-surface 501 and the Velcro mother surface 502 are pasted together to fix the tube body 1 on the wrist, without the need for complicated tools or additional auxiliary equipment, so that medical staff can quickly complete the fixing of the tube body 1 during clinical operations.

[0032] The bottom of the lower splint 3 is provided with an arc groove 302 , and the contact area and fit between the lower splint 3 and the wrist can be increased by providing the arc groove 302 at the bottom of the lower splint 3 , thereby further increasing the stability of the tube body 1 .

[0033] Among them, a first silicone pad 7 is fixedly installed inside the arc-shaped groove 302. The first silicone pad 7 improves the comfort of the lower splint 3 in contact with the skin, reduces pressure and friction on the skin, and reduces the risk of skin damage caused by long-term fixation.

[0034] Among them, a second silicone pad 8 is fixedly installed on the inner side of the connecting belt 5. The second silicone pad 8 improves the comfort of the connecting belt 5 in contact with the skin, reduces pressure and friction on the skin, and reduces the risk of skin damage caused by long-term fixation.

[0035] Among them, one end of the connecting belt 5 is fixedly connected with a plug 9, and the plug 9 is a plastic structure. The plug 9 with a plastic structure can facilitate the insertion of one end of the connecting belt 5 into the through hole 301, so as to quickly install and fix the connecting belt 5 and the wrist, thereby improving operating efficiency.

[0036] Among them, the connecting belt 5 is an elastic belt. By adopting the elastic belt material, it can better adapt to the flexion and extension of the wrist during activities. It will not cause poor blood circulation in the patient's wrist or excessive discomfort due to being too tight, nor will it cause the tube body 1 to be unfixed due to being too loose.

[0037] Among them, the locking bolt 4 is a handle bolt. The setting of the handle bolt facilitates the rapid adjustment of the tightness between the upper clamping plate 2 and the lower clamping plate 3, which is easy to operate.

[0038] It is worth noting that the tube body 1 with a membrane-sealed drug storage structure is a prior art structure disclosed in the Chinese patent publication number CN209575493U, and its structure and principle will not be described in detail here.

[0039] Working principle: When in use, after completing the positioning and plugging work of inserting the tube body 1 into the human body, the upper splint 2 and the lower splint 3 are separated by adjusting the locking bolt 4, and then the upper splint 2 and the lower splint 3 are pushed to move on the tube body 1, and the upper splint 2 and the lower splint 3 are pushed to the insertion hole close to the wrist where the tube body 1 is inserted into the skin, and then the locking bolt 4 is adjusted again to make the upper splint 2 and the lower splint 3 close to each other to clamp and fix the tube body 1, and then one end of the connecting belt 5 is passed through the through hole 301 and folded back, and the tube body 1 can be fixed on the wrist by sticking the Velcro sub-surface 501 and the Velcro mother surface 502, that is, the fixation of the tube body 1 is completed.

[0040] The above description shows and describes several preferred embodiments of the present invention, but as before, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. And the changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A membrane-sealed drug storage degradable catheter, comprising a tube body (1) having a membrane-sealed drug storage structure, characterized in that: A first locking component is installed on the outer wall of the tube body (1), and the first locking component can move freely or be locked and fixed on the tube body (1). A second locking component is installed on the first locking component, and the first locking component is fixed to the human wrist through the second locking component.

2. The membrane-sealed drug storage degradable catheter according to claim 1, characterized in that: The first locking component comprises an upper clamping plate (2), a lower clamping plate (3) and a locking bolt (4), and the upper clamping plate (2) and the lower clamping plate (3) are connected by the locking bolt (4); The clamping surfaces of the upper clamping plate (2) and the lower clamping plate (3) are in an arc-shaped structure that matches the outer shape of the tube body (1), and the tube body (1) is fixedly clamped between the upper clamping plate (2) and the lower clamping plate (3).

3. The membrane-sealed drug storage degradable catheter according to claim 2, characterized in that: Rubber pads (6) are fixedly mounted on the clamping surfaces of the upper clamping plate (2) and the lower clamping plate (3), respectively, and the rubber pads (6) are in contact with the outer wall of the tube body (1).

4. The membrane-sealed drug storage degradable catheter according to claim 2, characterized in that: The second locking component comprises a connecting belt (5), one end of which is fixedly mounted on one end of the lower part of the lower clamping plate (3), the other end of the lower part of the lower clamping plate (3) is provided with a through hole (301), one end of the back side of the connecting belt (5) is fixedly mounted with a Velcro sub-surface (501), and the other end is fixedly mounted with a Velcro mother surface (502), one end of the connecting belt (5) passes through the through hole (301) and is folded back so that the Velcro sub-surface (501) and the Velcro mother surface (502) are connected and fixed.

5. The membrane-sealed drug storage degradable catheter according to claim 2, characterized in that: An arc-shaped groove (302) is provided at the bottom of the lower clamping plate (3).

6. The membrane-sealed drug storage degradable catheter according to claim 5, characterized in that: A first silicone pad (7) is fixedly installed inside the arc-shaped groove (302).

7. The membrane-sealed drug storage degradable catheter according to claim 4, characterized in that: A second silicone pad (8) is fixedly mounted on the inner side surface of the connecting belt (5).

8. The membrane-sealed drug storage degradable catheter according to claim 4, characterized in that: One end of the connecting belt (5) is fixedly connected to a through-plug (9), and the through-plug (9) is a plastic structure.

9. The membrane-sealed drug storage degradable catheter according to claim 4, characterized in that: The connecting belt (5) is an elastic belt.

10. The membrane-sealed drug storage degradable catheter according to claim 4, characterized in that: The locking bolt (4) is a handle bolt.

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