Catheter for injecting medicine to focus in lung through tracheal cartilage gap catheterization

Abstract

The utility model discloses a catheter for intrapulmonary lesion medicine injection through tracheal cartilage gap catheterization, which relates to the technical field of medical instruments, comprises a lower part, an upper part and a fixing part, meets the requirement of reaching the position of an intractable cavernous lesion through a lower tube with the longest length of 30cm, can conveniently enter through a conical structure at the lower end of the lower tube, and is convenient to use. The size of the lower tube is matched with the requirement of continuous medicine injection through tracheal cartilage gap catheterization of medical staff.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically through tracheal cartilage gap intubation lung focus injection of a catheter for medicine. BACKGROUND

[0002] For pulmonary infectious foci, especially refractory cavitated foci (pulmonary abscess, pulmonary tuberculosis, pulmonary mycosis, bronchiectasis, etc.), and malignant tumor foci, the drug concentration in the lesion site is low through systemic treatment by oral or intravenous injection, intramuscular injection and other routes, and the treatment effect is poor. Sometimes patients cannot tolerate adverse reactions, which can lead to adverse consequences that are difficult to cure. Local injection of medicine is needed to achieve the treatment purpose or improve the treatment effect and cure rate. At present, under the guidance of a bronchoscope, a catheter is placed through the tracheal cartilage ring gap. The catheter reaches the pulmonary focus, especially the refractory cavity, and daily direct pumping of medicine to the focus through the catheter can increase the drug concentration in the focus site to avoid or reduce systemic adverse reactions, thereby improving the treatment effect and cure rate.

[0003] However, there is no special catheter in current clinical work, and central venous catheters, closed thoracic drainage tubes, and vascular interventional therapy catheters are often used instead. The central venous catheter has the problems of too short catheter, often cannot accurately reach the target site, not easy to fix, and easy to fall out. The closed thoracic drainage tube has a curled tail end that stimulates the airway and easily causes severe coughing pain in patients and even catheter falling out. The vascular interventional therapy catheter is too long, leaving a long extracorporeal part after intubation, which is not convenient for medicine injection, is easily contaminated, and is easily pulled out. Some catheters have the problems of too thick diameter, causing great damage to the tracheal intubation site, stimulating the trachea and bronchus to easily cause severe coughing, making it difficult for patients to persist, and even causing catheter displacement and falling out after severe coughing. These problems bring difficulties and risks to treatment and nursing, pipeline management, hospital infection prevention and control, etc.

[0004] In summary, the current lung focus injection catheterization process has the following technical problems: there is no special catheter in current clinical work, and central venous catheters, closed thoracic drainage tubes, and vascular interventional therapy catheters are used instead, but the size cannot meet the requirements of tracheal cartilage gap intubation, and there are problems of unstable fixation, leaving too long, and stimulation or damage. UTILITY MODEL CONTENT

[0005] In view of the above problems existing in the prior art, the utility model provides a catheter for lung focus injection through tracheal cartilage gap intubation.

[0006] To achieve the above technical purposes and effects, the utility model is realized by the following technical scheme:

[0007] The utility model provides a kind of catheterization lung focus injection medicine through tracheal cartilage gap, including lower part, upper part and fixed part, the lower part includes lower pipe, the upper side of the lower pipe is equipped with upper part, the upper part includes upper pipe, the lower pipe and upper pipe intermediate position fixedly connected with fixed part, the fixed part includes suture pad.

[0008] Further, the lower pipe has a length of 30-35 cm, an outer diameter of 2-2.5 mm and an inner diameter of 1.0-1.5 mm.

[0009] Further, the lower pipe has a length of 30 cm, a maximum outer diameter of 2.5 mm and an inner diameter of 1.0 mm.

[0010] Further, the lower pipe has a length of 30-35 cm, an outer diameter of 2-2.5 mm and an inner diameter of 1.0-1.5 mm.

[0011] Further, the upper pipe has an upper end fixedly connected with a connector, the upper pipe serves as an injection pipe, the connector serves as an injection port, and the connector has a threaded structure matched with a heparin cap.

[0012] Further, the upper pipe has a length of 15-25 cm.

[0013] Further, the suture pad is provided with a suture film.

[0014] The medical staff fixes the suture pad at a nearby sutureable position through the suture film.

[0015] Further, the suture film is provided with a suture hole in the middle.

[0016] The suture hole facilitates the medical staff to directly pass through and fix.

[0017] Further, the fixed part further includes a corrugated sleeve, a buckle and a sliding handle, the suture pad is provided with an inner groove, the inner groove is matched with the corrugated sleeve, the suture pad is provided with the buckle at the position of the inner groove, the buckle is matched with the corrugated sleeve, and the buckle and the suture pad are matched.

[0018] The buckle is provided with a trapezoidal groove on both sides, the buckle is provided with a sliding handle on both sides, the sliding handle is fixedly connected with a sliding rod, the sliding rod is located at the position of the trapezoidal groove, the sliding rod is fixedly connected with a trapezoidal block, the trapezoidal block is slidingly connected in the trapezoidal groove, and a tension spring is fixedly connected between the trapezoidal block and the buckle.

[0019] The buckle is fixedly connected with a clamping block, the suture pad is provided with a clamping groove in the middle, the suture pad is provided with a lower groove below the clamping groove, the clamping block is slidingly connected on the lower groove, and the clamping block is matched with the clamping groove.

[0020] The utility model has the advantages that:

[0021] The application discloses a catheter for trans-tracheal cartilage gap catheterization and pulmonary lesion medicine injection.

[0022] Of course, any product implementing the present application does not necessarily need to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0024] Figure 1 The whole structure schematic diagram of the catheter for trans-tracheal cartilage gap catheterization and pulmonary lesion medicine injection is shown in the figure.

[0025] Figure 2 The structure connection schematic diagram of the lower tube is shown in the figure.

[0026] Figure 3 The structure schematic diagram of the upper tube is shown in the figure.

[0027] Figure 4 The structure schematic diagram of the fixed part is shown in the figure.

[0028] Figure 5 The structure schematic diagram of the corrugated sleeve is shown in the figure.

[0029] Figure 6 The structure schematic diagram of the suture pad is shown in the figure.

[0030] Figure 7 The structure schematic diagram of the buckle frame and the sliding handle is shown in the figure.

[0031] Figure 8 The structure schematic diagram of the buckle frame is shown in the figure.

[0032] Figure 9 The structure schematic diagram of the sliding handle is shown in the figure.

[0033] In the drawings, the components represented by each number are listed as follows:

[0034] 1 - lower tube, 101 - distal tube, 2 - upper tube, 201 - interface, 3 - suture pad, 301 - suture film, 302 - suture hole, 303 - inner groove, 304 - lower groove, 305 - clamping groove, 310 - buckle frame, 311 - side groove, 312 - trapezoidal groove, 313 - tension spring, 320 - sliding handle, 321 - sliding rod, 322 - trapezoidal block, 323 - clamping block, 330 - corrugated sleeve. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0036] Embodiment 1

[0037] As shown in Figures 1-9

[0038] The utility model discloses a kind of tracheal cartilage gap catheterization intrapulmonary focus injection, including lower part, upper part and fixed part, the lower part includes lower tube (1), the lower tube (1) upper side is equipped with upper part, the upper part includes upper tube (2), lower tube (1) and upper tube (2) middle position fixedly connected with fixed part, the fixed part includes suture pad (3);

[0039] The lower tube (1) is 30-35cm in length, 2-2.5mm in outer diameter, and 1.0-1.5mm in inner diameter.

[0040] Embodiment 2

[0041] The lower tube (1) is 30cm in length, 2.5mm in maximum outer diameter, and 1.0mm in inner diameter.

[0042] Further, the lower tube (1) is tapered at 2cm from the lower end, the lower tube (1) is 2.5mm in outer diameter at the lower end, and 1.0mm in inner diameter.

[0043] The upper tube (2) is fixedly connected with an interface (201) at the upper end, the upper tube (2) serves as an injection tube, the interface (201) serves as an injection port, and the interface (201) has a threaded structure matched with a heparin cap.

[0044] The upper tube (2) is 15-25cm in length.

[0045] The suture pad (3) is provided with a suture film (301), and medical staff can fix the suture pad (3) at a nearby sutureable position through the suture film (301).​

[0046] The suture film (301) is provided with a suture hole (302) in the middle; the suture hole (302) facilitates the fixing of medical staff directly through it;

[0047] The fixing part further comprises a corrugated sleeve (330), a buckle frame (310) and a sliding handle (320), the suture pad (3) is provided with an inner groove (303), the inner groove (303) is matched with the corrugated sleeve (330), the suture pad (3) is provided with the buckle frame (310) at the position of the inner groove (303), the buckle frame (310) is matched with the corrugated sleeve (330), and the buckle frame (310) is matched with the suture pad (3); the two sides of the buckle frame (310) are provided with trapezoidal grooves (312), the two sides of the buckle frame (310) are provided with the sliding handle (320), the sliding handle (320) is fixedly connected with a sliding rod (321), the sliding rod (321) is located at the position of the trapezoidal groove (312), the sliding rod (321) is fixedly connected with a trapezoidal block (322), the trapezoidal block (322) is slidably connected in the trapezoidal groove (312), and the trapezoidal block (322) and the buckle frame (310) are fixedly connected with a tension spring (313); the buckle frame (310) is fixedly connected with a clamping block (323), the suture pad (3) is provided with a clamping groove (305) in the middle, the suture pad (3) is provided with a lower groove (304) below the clamping groove (305), the clamping block (323) is slidably connected on the lower groove (304), and the clamping block (323) is matched with the clamping groove (305).

[0048] In conclusion, the catheter for intrapulmonary lesion medicine injection through tracheal cartilage gap of the utility model, through the lower tube length of 30cm, meet the demand of reaching the refractory empty lesion position, through the tapered structure of the lower end of the lower tube, can be convenient to enter, through the size of the lower tube, the medical staff can meet the demand of continuous medicine injection through tracheal cartilage gap.

[0049] Because the refractory empty lesion is thin during the treatment, the development of the lesion needs to be lengthened, and under the guidance of the bronchoscope, the fixed duration of the pipeline is up to one month, the suture pad is used for fixing the position of the pipeline, and the subsequent adjustment cannot be carried out, and the fixing part is adjusted.

[0050] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments described. Obviously, according to the content of the description, many modifications and changes can be made. The description selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A catheter for intrapulmonary drug delivery via transtracheal intercartilage placement, characterized in that: It includes a lower part, an upper part, and a fixing part. The lower part includes a lower tube, and an upper part is provided on the upper side of the lower tube. The upper part includes an upper tube, and a fixing part is fixedly connected between the lower tube and the upper tube. The fixing part includes a suture pad.

2. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 1, characterized in that: The lower tube is 30-35cm long, with an outer diameter of 2-2.5mm and an inner diameter of 1.0-1.5mm.

3. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 2, characterized in that: The lower tube is 30cm long, with a maximum outer diameter of 2.5mm and an inner diameter of 1.0mm.

4. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 3, characterized in that: The lower end of the tube is tapered at 2cm from the bottom, with an outer diameter of 2.5mm and an inner diameter of 1.0mm.

5. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 1, characterized in that: The upper end of the upper tube is fixedly connected to an interface. The upper tube serves as an injection tube, and the interface serves as an injection port. The interface has a threaded structure that mates with the heparin cap.

6. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 1, characterized in that: The length of the upper tube is 15-25cm.

7. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 1, characterized in that: The suture pad is provided with a suture membrane.

8. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 7, characterized in that: The suture membrane has a suture hole in the middle.

9. The catheter for intrapulmonary lesion administration via the intertracheal cartilage space as described in claim 1, characterized in that: The fixing part also includes a corrugated sleeve, a buckle and a sliding handle. The sewing pad has an inner groove that mates with the corrugated sleeve. The sewing pad has a buckle at the position of the inner groove that mates with the corrugated sleeve and the sewing pad. The buckle frame has trapezoidal grooves on both sides and sliding handles on both sides. A sliding rod is fixedly connected to the sliding handle. The sliding rod is located in the trapezoidal groove. A trapezoidal block is fixedly connected to the sliding rod. The trapezoidal block is slidably connected in the trapezoidal groove. A tension spring is fixedly connected between the trapezoidal block and the buckle frame. A locking block is fixedly connected to the buckle frame, a locking groove is opened in the middle of the suture pad, a lower groove is opened on the lower side of the locking groove of the suture pad, the locking block is slidably connected to the lower groove, and the locking block and the locking groove cooperate.

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