Exhaust device for cardiac surgery

Abstract

The invention discloses an exhaust device for cardiac surgery, comprising: a flow guide assembly, the flow guide assembly comprising a sleeve, a puncture needle fixedly connected to the bottom of the sleeve, a moving rod member sequentially penetrating through the sleeve and the puncture needle, and a plurality of pairs of guide plates arranged between the sleeve and the moving rod member; wherein the sleeve comprises a first straight sleeve section and a second straight sleeve section fixedly connected with the first straight sleeve section, and the diameter of the second straight sleeve section is larger than that of the first straight sleeve section; an end plate is fixedly connected to the position, located at the joint of the second straight barrel section and the first straight barrel section, of the second straight barrel section. The second straight cylinder section is communicated with a connecting pipe; the puncture needle is sleeved with an air bag; and the internal section of the movable rod piece is communicated with the internal section of the sleeve. According to the cardiac surgery exhaust device, the using effect of the cardiac surgery exhaust device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to an exhaust device used in cardiac surgery. Background Art

[0002] After completing the relevant operations on the heart during cardiac surgery, a venting needle needs to be inserted into the blood vessel wall to discharge the blood into the patient's chest cavity, and then sucked out through a suction device. As the blood is discharged from the body through the needle, the gas solubility decreases due to the decrease in blood pressure, and some of the gas in the blood vessels will be discharged from the blood vessels at the same time to prevent gas embolism during and after the operation.

[0003] However, the existing heart exhaust device has a slow process of exhausting the gas in the heart, and some gas easily escapes the suction of the exhaust needle when flowing with the blood, increasing the risk of gas blocking capillaries and causing local necrosis, thereby reducing the effectiveness of the device. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an exhaust device for cardiac surgery, which solves the problem that in the prior art cardiac exhaust device, part of the gas easily escapes from the suction of the exhaust needle when flowing with the blood during the exhaust process, increasing the risk of gas blocking capillaries and causing local necrosis, thereby reducing the use effect of the device. In order to achieve the above purpose and other advantages according to the present invention, an exhaust device for cardiac surgery is provided, comprising:

[0005] A flow guide assembly, the flow guide assembly comprising a sleeve, a puncture needle fixed to the bottom of the sleeve, a moving rod that sequentially penetrates the sleeve and the puncture needle, and a plurality of pairs of guide plates disposed between the sleeve and the moving rod;

[0006] Wherein, the sleeve comprises a first straight tube section and a second straight tube section fixedly connected to the first straight tube section, and the diameter of the second straight tube section is greater than the diameter of the first straight tube section;

[0007] An end plate is fixedly connected to the second straight tube section at the junction of the second straight tube section and the first straight tube section;

[0008] The second straight tube section is connected with a connecting pipe;

[0009] The puncture needle is sleeved with an air bag;

[0010] The inner section of the moving rod is communicated with the inner section of the sleeve.

[0011] Preferably, the movable rod comprises a rotating cylinder, a connecting rod fixed to the upper end of the rotating cylinder, a hard tube fixed to the lower end of the rotating cylinder and a fan-shaped folding pad fixed to the hard tube, a ring fixed to the fan-shaped folding pad, and an elastic wire placed in the ring.

[0012] Preferably, a positioning control assembly is fixed to the connecting rod, and the positioning control assembly includes a pressure plate fixed to the connecting rod, a spring sleeved on the first straight cylinder section, and a vertical plate fixed on the top of the first straight cylinder section, one end of the spring is in contact with the bottom of the pressure plate, and the other end is in contact with the upper surface of the end plate.

[0013] Preferably, a longitudinal groove is provided on the connecting rod, an annular groove is provided above the longitudinal groove, and the longitudinal groove is arranged opposite to the vertical plate.

[0014] Preferably, a limiting block is fixedly connected to the top of the vertical plate close to the end surface of the longitudinal groove, and the limiting block matches the annular groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The patient's blood vessels can be blocked by the flow guide component, so that all the blood flow during the heart exhaust process enters the exhaust device for exhaust and then returns to the patient's body, so as to avoid the gas being carried by the blood flow to the capillaries when the exhaust needle is exhausted, causing local tissue necrosis. When using this device for exhaust, the puncture needle is inserted into the blood vessel to be exhausted. After the puncture is completed, the pressure plate connected to the top of the connecting rod is pressed down to make the fan-shaped folding pad unfold into a trumpet shape. At this time, the air bag set on the outside of the puncture needle is inflated, and the air bag will expand to block the blood vessel. After the blood vessel is blocked, the power pump connected to the suction device is started to draw blood from the groove opened on the side wall of the transfer cylinder into the sleeve, and then the sleeve is drawn into the suction device behind the connecting tube for exhaust.

[0017] (2) The positioning control component can help medical staff lock the vertical position of the connecting rod by pressing the pressure plate at the top of the connecting rod until the limit block slides to the top of the longitudinal groove. At this time, the pressing plate is rotated along the extension direction of the annular groove to the other end of the annular groove through the lever plate set on the side wall of the pressure plate to lock the vertical position of the connecting rod.

[0018] (3) The fixing assembly can be used in conjunction with the iron wire to fix the position of the puncture needle on the blood vessel. When the puncture needle needs to be fixed, the push block is pushed along the guide groove, and the movable ring and the vertical rod will release the movement restriction in the vertical direction. After the adjustment is completed, the push block is released, and the connecting plate will be reset under the toughness of the vertical rod, thereby resetting the sliding rod and the push block where the two connecting plates are located. After re-locking the position of the movable ring and the vertical rod, the iron wire at the bottom end of the vertical rod is wrapped around the blood vessel to position the puncture needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall three-dimensional structure of the exhaust device for cardiac surgery according to the present invention;

[0020] Figure 2A schematic diagram of a three-dimensional exploded structure of an exhaust device for cardiac surgery according to the present invention;

[0021] Figure 3 The exhaust device for cardiac surgery according to the present invention Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0022] Figure 4 The exhaust device for cardiac surgery according to the present invention Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0023] Figure 5 This is a schematic diagram of the cross-section structure of the exhaust device for cardiac surgery according to the present invention:

[0024] Figure 6 The exhaust device for cardiac surgery according to the present invention Figure 5 Schematic diagram of the enlarged structure of the C area in the middle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1 , an exhaust device for cardiac surgery, comprising:

[0027] A flow guide assembly, the flow guide assembly comprising a sleeve 2, a puncture needle 31 fixed to the bottom of the sleeve 2, a moving rod that sequentially penetrates the sleeve 2 and the puncture needle 31, and a plurality of pairs of guide plates 30 disposed between the sleeve 2 and the moving rod;

[0028] Wherein, the sleeve 2 comprises a first straight tube section and a second straight tube section fixedly connected to the first straight tube section, and the diameter of the second straight tube section is greater than the diameter of the first straight tube section;

[0029] An end plate 1 is fixedly connected to the second straight tube section at the junction of the second straight tube section and the first straight tube section;

[0030] The second straight tube section is connected with a connecting tube 5; the free end of the connecting tube 5 is connected with a suction device;

[0031] The puncture needle 31 is sleeved with an air bag 7;

[0032] The inner section of the movable rod is connected to the inner section of the sleeve 2;

[0033] The guide plate 30 can limit the moving stroke of the rotating drum 10 and guide the moving path of the hard tube 11 without affecting the conduction relationship inside the device.

[0034] like Figure 2 , 4 As shown, the movable rod includes a rotating cylinder 10, a connecting rod 17 fixed to the upper end of the rotating cylinder 10, a hard tube 11 fixed to the lower end of the rotating cylinder 10, and a fan-shaped folding pad 22 fixed to the hard tube 11, a ring 24 is fixed to the fan-shaped folding pad 22, and an elastic wire 23 is placed in the ring 24.

[0035] like Figure 3 As shown, a positioning control assembly is fixedly connected to the connecting rod 17, and the positioning control assembly includes a pressing plate 14 fixedly connected to the connecting rod 17, a spring 18 sleeved on the first straight tube section, and a vertical plate 20 fixedly connected to the top of the first straight tube section, one end of the spring 18 contacts the bottom of the pressing plate 14, and the other end contacts the upper surface of the end plate 1. A plurality of paddles 13 are evenly fixedly connected to the four sides of the pressing plate 14. A longitudinal groove 16 is provided on the connecting rod 17, and an annular groove 15 is provided above the longitudinal groove 16, and the longitudinal groove 16 is arranged opposite to the vertical plate 20. A limiting block 19 is fixedly connected to the top of the vertical plate 20 near the end face of the longitudinal groove 16, and the limiting block 19 matches the annular groove 15. By moving the rod and the positioning control assembly, medical staff can be assisted to lock the vertical position of the connecting rod 17. When the pressing plate 14 is pressed down, the pressing plate 14 will compress the spring 18 in contact with its bottom end, and at the same time the connecting rod 17 will move downward to make the limit block 19 connected to the top of the sleeve 2 through the vertical plate 20 slide along the longitudinal groove 16 until the limit block 19 slides to the top of the longitudinal groove 16. At this time, the pressing plate 14 is rotated to the other end of the annular groove 15 along the extension direction of the annular groove 15 by the dial plate 13 arranged on the side wall of the pressing plate 14 to lock the position of the connecting rod 17 in the vertical direction.

[0036] like Figure 4 As shown, a collar 24 is fixedly connected to the fan-shaped folding pad 22, and an elastic wire 23 is placed in the collar 24. The elastic wire 23 is spirally shaped after curling.

[0037] like Figure 1 , 2As shown in Figure 6, a moving ring (3) is sleeved on the sleeve (2), and a fixing assembly is fixed on the moving ring (3), and the fixing assembly is used to fix the position of the puncture needle (31) on the blood vessel. The adjustment assembly includes a pair of clamping columns 6 symmetrically arranged on the moving ring 3, a vertical rod 4 penetrating the clamping columns 6, a wire 8 fixed to one end of the vertical rod 4, a friction block 12 fixed to the top of the vertical rod 4, and a connecting plate 25 hinged to the friction block 12, and the end of the connecting plate 25 away from the friction block 12 is sleeved with a slide bar 27, and a push block 26 is fixed on the slide bar 27. A guide groove 29 is provided on the moving ring 3, and one end of the slide bar 27 is placed in the guide groove 29, and the slide bar 27 slides in the guide groove 29. In the present application, each clamping column 6 is penetrated by a vertical rod 4, so there are two vertical rods 4, two friction blocks 12, and two connecting plates 25, and one end of the two connecting plates 25 is sleeved on the slide bar 27. The end faces of the two friction blocks 12 close to the sleeve 2 are in contact with the outer side of the sleeve 2. When in use, the fixing assembly cooperates with the iron wire 8 to fix the position of the puncture needle on the blood vessel. When the puncture needle needs to be fixed, the push block 26 is pushed along the guide groove 29, and the slide bar 27 connected to the bottom end of the push block 26 will slide along the guide groove 29. At this time, the gauge block connecting plate 25 clamped on the slide bar 27 will rotate at the same time and push the two friction blocks 12 on both sides. At this time, the moving ring 3 and the vertical rod 4 will release the movement restriction in the vertical direction. The positions of the above two components are adjusted according to needs. After the adjustment is completed, the push block 26 is released, and the connecting plate 25 will be reset under the toughness of the vertical rod 4, thereby resetting the slide bar 27 and the push block 26 where the two connecting plates 25 are located. After re-locking the positions of the moving ring 3 and the vertical rod 4, the iron wire 8 at the bottom end of the vertical rod 4 is wound around the blood vessel to position the puncture needle 31.

[0038] Working principle:

[0039] The flow guide assembly provided in the present invention can block the patient's blood vessels, so that all the blood flow in the process of cardiac exhaust enters the exhaust device for exhaust and then returns to the patient's body, so as to avoid the gas being carried by the blood flow to the capillaries when the exhaust needle is exhausted, causing local tissue necrosis. When using the device for exhaust, the puncture needle is inserted into the blood vessel to be exhausted. After the puncture is completed, the pressure plate 14 connected to the top of the connecting rod 17 is pressed down. At this time, the middle rotating cylinder 10 provided at the bottom of the connecting rod 17 will move downward under the pressure of the connecting rod 17, so that the bottom end of the rotating cylinder is connected to the hard tube 11 through the bottom end of the rotating cylinder. After the connected fan-shaped folded pad 22 is moved out of the puncture needle, the front end of the fan-shaped folded pad 22 will be unfolded under the guidance of the elastic wire 23 in the ring 24, so that the fan-shaped folded pad 22 is unfolded into a trumpet shape to increase the blood flow of the blood inlet of the device; at this time, the air bag 7 arranged on the outside of the puncture needle is inflated, and the air bag 7 will expand to block the blood vessel. After the blood vessel is blocked, the power pump connected to the suction device is started to draw blood from the through groove 9 opened on the side wall of the transfer cylinder 10 into the sleeve 2, and then the sleeve 2 is drawn into the suction device behind the connecting tube 5 for exhaust.

[0040] The number of devices and processing scales described here are used to simplify the description of the present invention, and the application, modification and variation of the present invention will be obvious to those skilled in the art.

[0041] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An exhaust device for cardiac surgery, characterized in that: include: A flow guide assembly, the flow guide assembly comprising a sleeve (2), a puncture needle (31) fixed to the bottom of the sleeve (2), a movable rod that sequentially penetrates the sleeve (2) and the puncture needle (31), and a plurality of pairs of guide plates (30) disposed between the sleeve (2) and the movable rod; The sleeve (2) comprises a first straight tube section and a second straight tube section fixedly connected to the first straight tube section, and the diameter of the second straight tube section is greater than the diameter of the first straight tube section; An end plate (1) is fixedly connected to the second straight tube section at the junction of the second straight tube section and the first straight tube section; The second straight tube section is connected with a connecting pipe (5); The puncture needle (31) is sleeved with an air bag (7); The inner section of the movable rod is connected to the inner section of the sleeve (2).

2. An exhaust device for cardiac surgery according to claim 1, characterized in that: The movable rod comprises a rotating cylinder (10), a connecting rod (17) fixedly connected to the upper end of the rotating cylinder (10), a hard tube (11) fixedly connected to the lower end of the rotating cylinder (10), and a fan-shaped folding pad (22) fixedly connected to the hard tube (11), wherein a sleeve (24) is fixedly connected to the fan-shaped folding pad (22), and an elastic wire (23) is placed in the sleeve (24).

3. An exhaust device for cardiac surgery as claimed in claim 2, characterized in that: A positioning control assembly is fixedly connected to the connecting rod (17), and the positioning control assembly includes a pressure plate (14) fixedly connected to the connecting rod (17), a spring (18) sleeved on the first straight tube section, and a vertical plate (20) fixedly connected to the top of the first straight tube section, one end of the spring (18) is in contact with the bottom of the pressure plate (14), and the other end is in contact with the upper surface of the end plate (1).

4. An exhaust device for cardiac surgery as claimed in claim 3, characterized in that: The connecting rod (17) is provided with a longitudinal groove (16), an annular groove (15) is provided above the longitudinal groove (16), and the longitudinal groove (16) is arranged opposite to the vertical plate (20).

5. An exhaust device for cardiac surgery as claimed in claim 4, characterized in that: A limiting block (19) is fixedly connected to the top of the vertical plate (20) near the end surface of the longitudinal groove (16), and the limiting block (19) matches the annular groove (15).

6. An exhaust device for cardiac surgery as claimed in claim 1, characterized in that: A movable ring (3) is sleeved on the sleeve (2), and a fixing component is fixedly connected to the movable ring (3), and the fixing component is used to fix the position of the puncture needle (31) on the blood vessel.

Images