CN221637052U - Catheter for intravascular interventional therapy - Google Patents

Abstract

The utility model belongs to the technical field of clinical medical devices, and particularly relates to a catheter for intravascular interventional treatment, including a catheter and a needle, wherein the needle is installed on the left side of the catheter, and a fixing device is arranged on the outside of the catheter, wherein the fixing device includes a clamping unit, a mounting unit and a connecting unit, wherein the clamping unit is arranged on the outer surface of the catheter, and the mounting unit is arranged on the top of the clamping unit. The catheter for intravascular interventional treatment, by arranging the clamping unit, puts the fixing sleeve on the appropriate position of the outer surface of the catheter, drives the first threaded rod to rotate by rotating the first rotating rod, so that the front and rear clamps abut against the outer wall of the catheter to clamp the catheter, and by adjusting the distance between the front and rear clamps, it is convenient to clamp catheters of different specifications, and the use is more flexible, which solves the problem that catheters of different specifications cannot be clamped and fixed during use and there are limitations in the use of fixing catheters as mentioned in the background technology.

Description

A catheter for intravascular interventional therapy

Technical Field

The utility model relates to the technical field of clinical medical equipment, in particular to a catheter for intravascular interventional treatment.

Background Art

A clinical intravascular interventional treatment catheter is a catheter used for intravascular interventional treatment in clinical medicine. It is easy to use and has been widely used. However, with the development of science and technology, people have higher and higher requirements on the functions of clinical intravascular interventional treatment catheters.

During use, a clinical intravascular interventional catheter can perform the following operations: During cardiac interventional surgery, the balloon catheter is inserted into the narrow part of the blood vessel using percutaneous puncture technology under the guidance of medical imaging equipment, and the balloon is expanded under close monitoring to expand the narrow part of the blood vessel, thereby restoring the lumen diameter and accelerating blood circulation.

Although the existing clinical intravascular interventional treatment catheter has a simple structure and is easy to use, it has a single function. During use, it is not convenient to fix the position of the filling tube, and it may hinder the treatment work of medical staff when it is placed, which has certain inconveniences. During the operation of the existing clinical intravascular interventional treatment catheter, when injecting drugs to patients, the injection port is easily blocked by the blood vessel, which is inconvenient for drug injection and easily causes certain impact on the blood vessels, which has certain adverse effects. During use, the connection between the two catheter ports of the existing clinical intravascular interventional treatment catheter is easily infected by dirt, which has certain inconveniences.

For example, a catheter for clinical intravascular interventional treatment disclosed in Chinese patent CN110743085B has a filling tube limiting structure. When treating a patient, the position of the filling tube can be limited to a place where it will not hinder the treatment of medical staff through the clamping effect of an adsorption magnet, a double-sided tape, or an adhesive splint and an adsorption splint. This can prevent the filling tube from dragging and hindering the work of medical staff. Different methods can be selected to limit the position of the filling tube to a certain position according to the actual medical situation, so as to facilitate the work of medical staff and facilitate people's use.

However, the device cannot clamp and fix catheters of different specifications during use, and has limitations in its use for fixing catheters.

For this reason, we urgently need to provide a catheter for intravascular interventional treatment.

Utility Model Content

The utility model aims to provide a catheter for intravascular interventional treatment, so as to solve the problem that catheters of different specifications cannot be clamped and fixed during use, and there are limitations in the use of catheter fixation, as mentioned in the above background technology.

To achieve the above-mentioned purpose, the utility model provides the following technical solution: a catheter for intravascular interventional treatment, comprising a catheter and a needle, wherein the needle is installed on the left side of the catheter, and a fixing device is arranged on the outside of the catheter.

The fixing device comprises a clamping unit, a mounting unit and a connecting unit. The clamping unit is arranged on the outer surface of the catheter, the mounting unit is arranged on the top of the clamping unit, and the connecting unit is arranged at an end of the catheter away from the needle.

The clamping unit includes a fixing sleeve, a first threaded rod, a first rotating rod, a clamping plate and a bearing. The fixing sleeve is installed on the outer surface of the catheter. The first threaded rod is threadedly connected to the front and rear ends of the fixing sleeve. The first rotating rod is fixedly installed on one end of the first threaded rod. The clamping plate is installed on the end of the first threaded rod away from the first rotating rod. The bearing is fixedly installed on the inner ring of the clamping plate.

Preferably, the installation unit includes a left clamping block, a right clamping block, a second threaded rod, an anti-slip pad and a second rotating rod, the left clamping block is fixedly installed at the top front end of the fixing sleeve, the right clamping block is fixedly installed at the top rear end of the fixing sleeve, the second threaded rod is threadedly connected to the inside of the right clamping block, the anti-slip pad is fixedly installed at the front end of the second threaded rod, and the second rotating rod is fixedly installed at the rear end of the second threaded rod.

Preferably, the connecting unit comprises a fixing block and a threaded sleeve, the fixing block is fixedly mounted on the outer surface of the right end of the conduit, and the threaded sleeve is fixedly mounted on the right end of the fixing block.

Preferably, a drug injection device is provided above the catheter, and the drug injection device includes a drug injection tube, a drug adding port, a drug inlet and a push rod. The drug injection tube is provided above the catheter, the drug adding port is fixedly installed on the right side of the top of the drug injection tube, the drug inlet is fixedly installed on the left side of the bottom of the drug injection tube, and the push rod is installed inside the drug injection tube.

Preferably, a sponge pad is fixedly installed on one end of the splint close to the catheter, which prevents the splint from directly contacting the surface of the catheter and avoiding scratches on the catheter. The first threaded rod is fixedly installed on the inner ring of the bearing to prevent the splint from rotating when the first threaded rod rotates.

Preferably, a connection hole is provided at the upper end of the left clamp block, which is connected to the connection hole through an external hook, thereby facilitating the installation and placement of the catheter.

Preferably, the drug inlet is connected to the catheter at one end away from the drug injection tube, so that the drug solution in the drug injection tube enters the catheter along the drug inlet.

Compared with the prior art, the beneficial effects of the utility model are:

1. The catheter for intravascular interventional treatment is provided with a clamping unit, a fixing sleeve is put on a suitable position on the outer surface of the catheter, and the first rotating rod is driven to rotate to make the front and rear clamps abut against the outer wall of the catheter to clamp the catheter. By adjusting the distance between the front and rear clamps, it is convenient to clamp catheters of different specifications, and the use is more flexible, which solves the problem that catheters of different specifications cannot be clamped and fixed during use and there are limitations in the use of catheter fixation proposed in the background technology.

2. The catheter for intravascular interventional treatment is provided with an installation unit. When fixing the fixing sleeve, the installation block required for installation is placed between the left clamp block and the right clamp block. The second threaded rod is driven to rotate by rotating the second rotating rod, so that the anti-slip pad and the left clamp block clamp the installation block, thereby fixing the fixing sleeve at the desired position. At the same time, the fixing sleeve can be fixed by cooperating with the connecting hole of the left clamp block through the hook.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG2 is a schematic diagram of the structure of the connection between the clamping unit and the mounting unit of the present invention;

FIG3 is an enlarged view of point A in FIG1 ;

FIG. 4 is a schematic diagram of the structure of the connection between the catheter and the needle of the present invention.

In the figure: 1, catheter; 2, needle; 301, fixed sleeve; 302, first threaded rod; 303, first rotating rod; 304, clamp; 305, bearing; 306, left clamp block; 307, right clamp block; 308, second threaded rod; 309, anti-slip pad; 310, second rotating rod; 311, fixed block; 312, threaded sleeve; 401, injection tube; 402, drug adding port; 403, drug inlet; 404, push rod.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 4. The utility model provides a technical solution:

Embodiment 1:

A catheter for intravascular interventional treatment comprises a catheter 1 and a needle 2. The needle 2 is installed on the left side of the catheter 1. A fixing device is arranged on the outer side of the catheter 1.

The fixing device comprises a clamping unit, a mounting unit and a connecting unit. The clamping unit is arranged on the outer surface of the catheter 1 , the mounting unit is arranged on the top of the clamping unit, and the connecting unit is arranged at an end of the catheter 1 away from the needle 2 .

The clamping unit includes a fixing sleeve 301, a first threaded rod 302, a first rotating rod 303, a clamping plate 304 and a bearing 305. The fixing sleeve 301 is installed on the outer surface of the catheter 1, the first threaded rod 302 is threadedly connected to the front and rear ends inside the fixing sleeve 301, the first rotating rod 303 is fixedly installed on one end of the first threaded rod 302, the clamping plate 304 is installed on the end of the first threaded rod 302 away from the first rotating rod 303, and a sponge pad is fixedly installed on the end of the clamping plate 304 close to the catheter 1. The sponge pad prevents the clamping plate 304 from directly contacting the surface of the catheter 1 to prevent the clamping plate 304 from scratching the catheter 1. The bearing 305 is fixedly installed on the inner ring of the clamping plate 304, and the first threaded rod 302 is fixedly installed on the inner ring of the bearing 305 to prevent the clamping plate 304 from rotating when the first threaded rod 302 rotates.

The mounting unit comprises a left clamping block 306, a right clamping block 307, a second threaded rod 308, an anti-skid pad 309 and a second rotating rod 310. The left clamping block 306 is fixedly mounted at the top front end of the fixing sleeve 301. A connecting hole is provided at the upper end of the left clamping block 306, which is connected to the connecting hole through an external hook, so as to facilitate the installation and placement of the catheter 1. The right clamping block 307 is fixedly mounted at the top rear end of the fixing sleeve 301. The second threaded rod 308 is threadedly connected to the inside of the right clamping block 307. The anti-skid pad 309 is fixedly mounted at the front end of the second threaded rod 308. The second rotating rod 310 is fixedly mounted at the rear end of the second threaded rod 308.

The connecting unit comprises a fixing block 311 and a threaded sleeve 312. The fixing block 311 is fixedly mounted on the outer surface of the right end of the conduit 1. The threaded sleeve 312 is fixedly mounted on the right end of the fixing block 311. The connecting unit is connected to the device via the threaded sleeve 312. The structure is simple and the connection is convenient.

Embodiment 2:

On the basis of Example 1: a drug injection device is arranged above the catheter 1, and the drug injection device includes a drug injection tube 401, a drug adding port 402, a drug inlet 403 and a push rod 404. The drug injection tube 401 is arranged above the catheter 1, the drug adding port 402 is fixedly installed on the right side of the top of the drug injection tube 401, and the drug inlet 403 is fixedly installed on the left side of the bottom of the drug injection tube 401. The end of the drug inlet 403 away from the drug injection tube 401 is connected to the catheter 1, so that the drug liquid in the drug injection tube 401 enters the catheter 1 along the drug inlet 403, and the push rod 404 is installed inside the drug injection tube 401. By pushing the push rod 404, the drug liquid in the drug injection tube 401 is pushed into the catheter 1 through the drug inlet 403, and then injected into the human body along the needle 2.

When in use, the catheter 1 is connected to the device through the threaded sleeve 312, the needle 2 is inserted into the blood vessel, and then the fixed sleeve 301 is sleeved on the appropriate position of the outer surface of the catheter 1. The first rotating rod 303 is rotated to drive the first threaded rod 302 to rotate, so that the front and rear two clamping plates 304 are in contact with the outer wall of the catheter 1 to clamp the catheter 1, and then the second rotating rod 310 is rotated to drive the second threaded rod 308 to rotate, so that the anti-slip pad 309 and the left clamping block 306 clamp the external mounting block, or the fixing sleeve 301 is fixed by the hook and the connecting hole of the left clamping block 306. When it is necessary to inject medicine, the medicine is added into the injection tube 401 from the medicine adding port 402, and then the push rod 404 is pushed to push the medicine liquid into the catheter 1 along the medicine inlet 403, and then injected into the human body along the needle 2.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims (7)

1. Catheter for endovascular intervention, comprising a catheter (1) and a needle (2), wherein the needle (2) is arranged on the left side of the catheter (1), and is characterized in that: a fixing device is arranged outside the catheter (1);

The fixing device comprises a clamping unit, a mounting unit and a connecting unit, wherein the clamping unit is arranged on the outer surface of the catheter (1), the mounting unit is arranged at the top of the clamping unit, and the connecting unit is arranged at one end, far away from the needle head (2), of the catheter (1);

The clamping unit comprises a fixing sleeve (301), a first threaded rod (302), a first rotating rod (303), clamping plates (304) and bearings (305), wherein the fixing sleeve (301) is installed on the outer surface of a catheter (1), the first threaded rod (302) is in threaded connection with the front end and the rear end of the inside of the fixing sleeve (301), the first rotating rod (303) is fixedly installed at one end of the first threaded rod (302), the clamping plates (304) are installed at one end, far away from the first rotating rod (303), of the first threaded rod (302), and the bearings (305) are fixedly installed on the inner rings of the clamping plates (304).

2. A catheter for endovascular intervention as in claim 1, wherein: the installation unit comprises a left clamping block (306), a right clamping block (307), a second threaded rod (308), an anti-slip pad (309) and a second rotating rod (310), wherein the left clamping block (306) is fixedly installed at the front end of the top of the fixed sleeve (301), the right clamping block (307) is fixedly installed at the rear end of the top of the fixed sleeve (301), the second threaded rod (308) is in threaded connection with the inside of the right clamping block (307), the anti-slip pad (309) is fixedly installed at the front end of the second threaded rod (308), and the second rotating rod (310) is fixedly installed at the rear end of the second threaded rod (308).

3. A catheter for endovascular intervention as in claim 1, wherein: the connecting unit comprises a fixed block (311) and a threaded sleeve (312), wherein the fixed block (311) is fixedly arranged on the outer surface of the right end of the guide pipe (1), and the threaded sleeve (312) is fixedly arranged on the right end of the fixed block (311).

4. A catheter for endovascular intervention as in claim 1, wherein: the utility model discloses a medicine injection device, including pipe (401), charge mouth (402), feed inlet (403) and push rod (404) are provided with to pipe (1) top, pipe (401) are located in pipe (1) top, charge mouth (402) fixed mounting is located in pipe (401) top right side, feed inlet (403) fixed mounting is located in pipe (401) bottom left side, push rod (404) are located inside pipe (401).

5. A catheter for endovascular intervention as in claim 1, wherein: and a sponge cushion is fixedly arranged at one end, close to the catheter (1), of the clamping plate (304), and the first threaded rod (302) is fixedly arranged at the inner ring of the bearing (305).

6. A catheter for endovascular intervention as in claim 2, wherein: the upper end of the left clamping block (306) is provided with a connecting hole.

7. The catheter for endovascular intervention as in claim 4, wherein: one end of the medicine inlet (403) far away from the medicine injection tube (401) is connected with the catheter (1).