Auxiliary device for cardiovascular surgery in cardiac surgery department

Abstract

The invention discloses an auxiliary device for cardiovascular surgery in the cardiac surgery department, and belongs to the technical field of medical instruments, the auxiliary device comprises a catheter, a first supporting assembly and a second supporting assembly, the first supporting assembly and the second supporting assembly are installed at the front end of the catheter in a spaced mode, the first supporting assembly is arranged on the front side of the second supporting assembly in a spaced mode, and a first air channel extending in the axial direction is formed in the inner side of the catheter; a first sliding groove corresponding to the first supporting assembly is formed in the front end of the guide pipe, one end of the first air channel extends to the rear end of the guide pipe, and the other end of the first air channel communicates with the first sliding groove; the first supporting assembly comprises a first arc-shaped outer supporting plate, first air bags, a first sliding ring, a first sliding pipe and a first elastic supporting device, the first sliding ring is slidably arranged on the outer side of the first sliding groove in the axial direction of the guide pipe, and the multiple sets of first air bags are evenly distributed on the periphery of the guide pipe. According to the device, when the catheter encounters vascular tortuosity, the pushing angle of the catheter can be conveniently adjusted, and an operation can be carried out more smoothly.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to an auxiliary device for cardiovascular surgery in cardiac surgery. Background Art

[0002] In order to respond to cardiovascular diseases in a timely manner, patients need to be intubated in a timely manner. During intubation, the endotracheal tube is guided into the trachea using image observation, which provides visual indicators for blind intubation, thereby effectively improving the success rate of intubation, which is beneficial to the patient's recovery, reduces the burden on the patient and his family, and allows the patient to treat the disease faster and more comfortably. Intubation devices are often used during intubation. When inserting the catheter into a blood vessel, if the blood vessel has obvious vascular tortuosity, it is not easy to continuously push the catheter to the lesion site due to the obstruction of the blood vessel wall, which will prolong the operation time and increase the patient's surgical risk. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an auxiliary device for cardiovascular surgery in cardiac surgery, which can facilitate the adjustment of the pushing angle of the catheter when the catheter encounters a tortuous blood vessel, so as to make the operation go more smoothly.

[0004] In order to achieve the above object, the present invention provides the following technical solutions: The present invention discloses an auxiliary device for cardiovascular surgery in cardiac surgery, comprising a catheter, a first support assembly and a second support assembly installed at a front end of the catheter at intervals, the first support assembly being arranged at a front side of the second support assembly at intervals, an axially extending first airway being provided on the inner side of the catheter, a first slide groove corresponding to the first support assembly being provided on the front end of the catheter, one end of the first airway extending to the rear end of the catheter, and the other end of the first airway being communicated with the first slide groove; the first support assembly comprises a first arc-shaped outer support plate, a first airbag, a first sliding ring, a first sliding tube, and a first elastic support device, the first sliding ring being arranged on the outer side of the first slide groove along the axial direction of the catheter for sliding, a plurality of first airbags being evenly arranged around the catheter, the first sliding ring being connected to the first arc-shaped outer support plate through the first airbag, a first hole being provided in the first sliding ring, one end of the first sliding tube being slidingly sealed in the first airway, the first sliding tube being fixedly connected to the first sliding ring and being communicated with the first airbag through the first hole inside the first sliding ring, and a first elastic support device being arranged between the first sliding ring and the catheter.

[0005] Furthermore, a ball groove is provided on the inner side of the first slip ring, a ball is rolled in the ball groove, the ball contacts the catheter, a groove connected to the ball groove is provided on the outer side of the first slip ring, and the first airbag can extend into the ball groove after expansion.

[0006] Furthermore, the first elastic support device adopts a spring, and the spring is sleeved on the outside of the first sliding tube. The two ends of the spring are respectively fixedly connected to the first sliding ring and the guide tube.

[0007] Furthermore, a bellows expansion tube is installed on the outer side of the spring, and two ends of the bellows expansion tube are fixedly connected to the first slip ring and the conduit respectively.

[0008] Furthermore, an axially extending second air channel is provided on the inner side of the catheter, a second slide groove corresponding to the second support assembly is provided on the front end of the catheter, one end of the second air channel extends to the rear end of the catheter, and the other end of the second air channel is connected to the second slide groove; the second support assembly includes a second arc-shaped outer support plate, a second airbag, a second slip ring, a second sliding tube, and a second elastic support device, the second slip ring is set on the outer side of the second slide groove along the axial sliding of the catheter, a plurality of groups of second airbags are evenly distributed around the catheter, the second slip ring is connected to the second arc-shaped outer support plate through the second airbag, a second hole is provided in the second slip ring, one end of the second sliding tube is slidingly sealed in the second air channel, the second sliding tube is fixedly connected to the second slip ring and is connected to the second airbag through the second hole on the inner side of the second slip ring, and a second elastic support device is arranged between the second slip ring and the catheter.

[0009] Furthermore, the front end of the catheter is provided with a rounded corner.

[0010] Furthermore, a sleeve handle is installed on the outer side of the rear end of the catheter, and the sleeve handle is slidably matched with the catheter.

[0011] Furthermore, the catheter includes a catheter body, a front end tube and a connecting tube connecting the catheter body and the front end tube, the two ends of the connecting tube are respectively detachably connected to the catheter body and the front end tube, and the connecting tube is located between the first support assembly and the second support assembly.

[0012] Furthermore, the two ends of the connecting pipe are respectively threadedly connected to the catheter body and the front end pipe, a transition pipe is fixedly arranged on the outside of the connecting pipe, and a through hole penetrating the two ends of the transition pipe is provided on the transition pipe, and the through hole connects the catheter body and the first airway on the front end pipe.

[0013] The beneficial effects of the present invention are: The present invention discloses an auxiliary device for cardiovascular surgery in cardiac surgery, in which a first support assembly is arranged at the front end of a catheter, and the first support assembly includes a plurality of groups of first airbags arranged around the catheter. Therefore, by individually controlling each group of first airbags, the front end of the catheter can be offset according to the expansion of the airbags to achieve a change in angle, thereby avoiding the problem of uncomfortable pushing caused by direct frontal contact between the front end of the catheter and the tortuosity of the blood vessel.

[0014] In the auxiliary device disclosed in the present invention, the angle is controlled by the airbag, and the insertion position of the catheter is observed through perspective, so that the control is simpler, the operation time can be greatly reduced, and the damage to the blood vessel wall can be reduced.

[0015] Other advantages, objectives and features of the present invention will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art may be taught from the practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration: Figure 1 It is a schematic diagram of the structure of the auxiliary device of the present invention; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 for Figure 1 The enlarged view of point B in the middle; Figure 4 Schematic diagram of the ball arrangement.

[0017] The markings in the accompanying drawings are as follows: catheter 1, first support assembly 2, second support assembly 3, first air channel 4, first slide groove 5, first arc-shaped outer support plate 6, first air bag 7, first sliding ring 8, first sliding tube 9, first elastic support device 10, first channel 11, ball groove 12, ball 13, groove 14, corrugated telescopic tube 15, second air channel 16, second slide groove 17, second arc-shaped outer support plate 18, second air bag 19, second sliding ring 20, second sliding tube 21, second elastic support device 22, second channel 23, fillet 24, sleeve handle 25, catheter body 26, front end tube 27, connecting tube 28, transition tube 29, through hole 30. DETAILED DESCRIPTION

[0018] like Figures 1 to 4 As shown, the present invention discloses an auxiliary device for cardiovascular surgery, comprising a catheter 1, a first support assembly 2 and a second support assembly 3 installed at a distance at the front end of the catheter 1. The catheter 1 adopts an existing structure and can bend to a certain extent according to the force conditions. The first support assembly 2 and the second support assembly 3 are installed at a distance on the catheter 1, and the first support assembly 2 is arranged at a distance in front of the second support assembly 3. When the second support assembly 3 acts, the first support assembly 2 can guide the movement of the catheter 1, but the change of the main angle control is still achieved through the second support assembly 3.

[0019] Furthermore, the inner side of the catheter 1 is provided with an axially extending first airway 4. Of course, the axial extension here does not mean a completely straight extension. As needed, the slotted position can be avoided to facilitate inflation and deflation. Each group of first airways 4 corresponds to a group of first airbags 7, so that each group of first airbags 7 can be controlled separately. The front end of the catheter 1 is provided with a first slide groove 5 corresponding to the first support assembly 2. The first slide groove 5 is an annular groove and is provided on the outer side of the catheter 1. One end of the first airway 4 extends to the rear end of the catheter 1 and is connected to the air pump. The other end of the first airway 4 is connected to the first slide groove 5. The first support assembly 2 includes a first arc-shaped outer support plate 6, a first airbag 7, a first sliding ring 8, a first sliding tube 9, and a first elastic support device 10. The first sliding ring 8 is arranged on the outer side of the first slide groove 5 along the axial sliding of the catheter 1. The inner diameter of the first sliding ring 8 is adapted to the outer diameter of the first slide groove 5 of the catheter 1, which can ensure that the first sliding ring 8 is basically displaced along the axial direction.

[0020] A plurality of groups of first airbags 7 are evenly distributed around the catheter 1, the first sliding ring 8 is connected to the first arc-shaped outer support plate 6 through the first airbag 7, a first channel 11 is opened in the first sliding ring 8, one end of the first sliding tube 9 is slidingly sealed in the first airway 4, a sealing ring is arranged between the first sliding tube 9 and the first airway 4 to ensure sealing, the first sliding tube 9 is fixedly connected to the first sliding ring 8 and is connected to the first airbag 7 through the first channel 11 inside the first sliding ring 8, and a first elastic support device 10 is arranged between the first sliding ring 8 and the catheter 1.

[0021] The specific working process is as follows: at the beginning, the first airbag 7 is deflated, and the first arc-shaped outer support plate 6 is tightly attached to the first sliding ring 8 under the elastic force of the first airbag 7, and will not cause obstruction to the inner wall of the blood vessel. The catheter 1 is pushed to the specified position by manual or existing pushing devices. When the front end of the catheter 1 meets the tortuosity of the blood vessel, the expansion degree of each group of first airbags 7 is repeatedly adjusted to make the catheter 1 deflect at an angle under the pressure difference of each group of first airbags 7. When the deflection is consistent with the angle of the blood vessel tortuosity, the second support component 3 is stabilized and continuously pushed inward for a distance until the front end of the blood vessel passes the tortuosity of the blood vessel, and the first airbag 7 and the second support component 3 are released at will, and the catheter 1 is continuously pushed inward until it reaches the specified position.

[0022] In this embodiment, a ball groove 12 is provided on the inner side of the first sliding ring 8, a ball 13 is rolled and installed in the ball groove 12, the ball 13 is in contact with the catheter 1, and a groove 14 connected with the ball groove 12 is provided on the outer side of the first sliding ring 8, and the first airbag 7 can extend into the ball groove 12 after expansion. By evenly contacting the ball 13, when the first airbag 7 is not inflated, the ball 13 rolls and contacts with the catheter 1, reducing the friction between the catheter 1 and the first sliding ring 8, and the first elastic support device 10 can push the first sliding ring 8 to its original position, and the whole process is smoother.

[0023] In this embodiment, the first elastic support device 10 is a spring, which is sleeved on the outside of the first sliding tube 9, and the two ends of the spring are respectively fixedly connected to the first sliding ring 8 and the conduit 1. The device has a simple structure and can increase the stability of the structure when in use.

[0024] In this embodiment, a bellows expansion tube 15 is installed on the outside of the spring, and the two ends of the bellows expansion tube 15 are fixedly connected to the first slip ring 8 and the conduit 1 respectively. By providing the bellows expansion tube 15, impurities can be prevented from adhering to the spring, thereby ensuring the expansion performance of the spring and increasing the life of the structure.

[0025] Similar to the first support assembly 2, in this embodiment, the inner side of the catheter 1 is provided with an axially extending second airway 16, the front end of the catheter 1 is provided with a second slide groove 17 corresponding to the second support assembly 3, one end of the second airway 16 extends to the rear end of the catheter 1, and the other end of the second airway 16 is connected to the second slide groove 17; the second support assembly 3 includes a second arc-shaped outer support plate 18, a second airbag 19, a second sliding ring 20, a second sliding tube 21, and a second elastic support device 22, and the second sliding ring 20 slides along the axial direction of the catheter 1 It is arranged on the outside of the second slide groove 17, and multiple groups of second airbags 19 are evenly distributed around the catheter 1. The second slip ring 20 is connected to the second arc-shaped outer support plate 18 through the second airbag 19. A second channel 23 is opened in the second slip ring 20. One end of the second sliding tube 21 is slidingly sealed and arranged in the second air channel 16. The second sliding tube 21 is fixedly connected to the second slip ring 20 and is connected to the second airbag 19 through the second channel 23 on the inner side of the second slip ring 20. A second elastic support device 22 is arranged between the second slip ring 20 and the catheter 1.

[0026] The second airbags 19 disclosed in the present invention can be connected to the same air pump, and the expansion degrees of each group of second airbags 19 are exactly the same. The second support assembly 3 is mainly used to support the catheter 1 when it is pushed, so as to ensure the stability of the catheter 1 when it is pushed inward and will not affect the angle of the catheter 1.

[0027] In this embodiment, the front end of the catheter 1 is provided with a rounded corner 24, which can reduce the damage to the blood vessel wall caused by the catheter 1 when pushing. A sleeve handle 25 is installed on the outer side of the rear end of the catheter 1, and the sleeve handle 25 slides with the catheter 1 to facilitate pushing.

[0028] In this embodiment, the catheter 1 includes a catheter body 26, a front end tube 27, and a connecting tube 28 connecting the catheter body 26 and the front end tube 27. The two ends of the connecting tube 28 are detachably connected to the catheter body 26 and the front end tube 27, respectively, and the connecting tube 28 is located between the first support assembly 2 and the second support assembly 3. By replacing the connecting tube 28 of different lengths, the distance between the first support assembly 2 and the second support assembly 3 can be changed to select a suitable pushing interval. For example, when the distance between the first support assembly 2 and the second support assembly 3 is longer, the turning process of the front end of the catheter 1 is weaker, but the movement process of the catheter 1 can be made more stable, reducing the pushing pressure at the rear end of the catheter 1.

[0029] In this embodiment, the two ends of the connecting tube 28 are threadedly connected to the catheter body 26 and the front end tube 27 respectively. A transition tube 29 is fixedly provided on the outside of the connecting tube 28. A through hole 30 is provided on the transition tube 29 and penetrates the two ends of the transition tube 29. The through hole 30 connects the catheter body 26 and the first air channel 4 on the front end tube 27, thereby ensuring that the first air channel 4 can be normally inflated and deflated.

[0030] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. An auxiliary device for cardiovascular surgery, characterized in that: The invention comprises a catheter, a first support assembly and a second support assembly which are installed at the front end of the catheter at intervals, the first support assembly being arranged at the front side of the second support assembly at intervals, an axially extending first airway is provided on the inner side of the catheter, a first slide groove corresponding to the first support assembly is provided on the front end of the catheter, one end of the first airway extends to the rear end of the catheter, and the other end of the first airway is communicated with the first slide groove; the first support assembly comprises a first arc-shaped outer support plate, a first airbag, a first sliding ring, a first sliding tube, and a first elastic supporting device, the first sliding ring is arranged on the outer side of the first slide groove for sliding along the axial direction of the catheter, a plurality of first airbags are evenly arranged around the catheter, the first sliding ring is connected to the first arc-shaped outer support plate through the first airbag, a first hole is provided in the first sliding ring, one end of the first sliding tube is slidingly sealed in the first airway, the first sliding tube is fixedly connected to the first sliding ring and is communicated with the first airbag through the first hole inside the first sliding ring, and a first elastic supporting device is arranged between the first sliding ring and the catheter.

2. The auxiliary device for cardiovascular surgery according to claim 1, characterized in that: A ball groove is provided on the inner side of the first slip ring, a ball is rolled in the ball groove, the ball contacts the catheter, a groove connected to the ball groove is provided on the outer side of the first slip ring, and the first airbag can extend into the ball groove after expansion.

3. The auxiliary device for cardiovascular surgery according to claim 2, characterized in that: The first elastic support device adopts a spring, and the spring is sleeved on the outside of the first sliding tube. The two ends of the spring are fixedly connected to the first sliding ring and the guide tube respectively.

4. The auxiliary device for cardiovascular surgery according to claim 3, characterized in that: A bellows expansion tube is installed on the outer side of the spring, and two ends of the bellows expansion tube are fixedly connected to the first slip ring and the conduit respectively.

5. The auxiliary device for cardiovascular surgery according to claim 1, characterized in that: The inner side of the catheter is provided with an axially extending second air channel, the front end of the catheter is provided with a second slide groove corresponding to the second support assembly, one end of the second air channel extends to the rear end of the catheter, and the other end of the second air channel is communicated with the second slide groove; the second support assembly includes a second arc-shaped outer support plate, a second airbag, a second sliding ring, a second sliding tube, and a second elastic support device, the second sliding ring is arranged on the outer side of the second slide groove along the axial sliding of the catheter, a plurality of groups of second airbags are evenly distributed around the catheter, the second sliding ring is connected to the second arc-shaped outer support plate through the second airbag, a second channel is provided in the second sliding ring, one end of the second sliding tube is slidingly sealed in the second air channel, the second sliding tube is fixedly connected to the second sliding ring and is communicated with the second airbag through the second channel inside the second sliding ring, and a second elastic support device is arranged between the second sliding ring and the catheter.

6. The auxiliary device for cardiovascular surgery according to claim 1, characterized in that: The front end of the catheter is provided with a rounded corner.

7. The auxiliary device for cardiovascular surgery according to claim 1, characterized in that: A sleeve handle is installed on the outer side of the rear end of the catheter, and the sleeve handle is slidably matched with the catheter.

8. The auxiliary device for cardiovascular surgery according to any one of claims 1 to 7, characterized in that: The catheter comprises a catheter body, a front end tube and a connecting tube connecting the catheter body and the front end tube. Both ends of the connecting tube are detachably connected to the catheter body and the front end tube respectively. The connecting tube is located between the first supporting assembly and the second supporting assembly.

9. The auxiliary device for cardiovascular surgery according to claim 8, characterized in that: The two ends of the connecting pipe are respectively threadedly connected to the catheter body and the front end pipe. A transition pipe is fixedly arranged on the outside of the connecting pipe. The transition pipe has a through hole that penetrates the two ends of the transition pipe. The through hole connects the catheter body and the first airway on the front end pipe.

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