Automatic measuring device for negative pressure perfusion suction capacity and pressure

Abstract

The invention discloses a negative pressure perfusion suction capacity and pressure automatic measuring device, and relates to the technical field of medical instruments. Comprising a connecting part, one end of the connecting part is provided with a connector, a through hole is formed in the connecting part, and the through hole is communicated with the connector; the rotating part is rotationally connected with the connecting part, a first barrel and a second barrel are arranged on the rotating part, the first barrel and the second barrel can form a channel with the through hole, a puncture needle core and a puncture brush are arranged in the first barrel, and a piston rod is arranged in the second barrel; during puncturing, the first barrel and the through hole form a channel; when effusion is sucked, the puncture needle core returns into the first barrel, the rotating part is rotated, and the second barrel and the through hole form a channel. According to the automatic measuring device for the suction capacity and pressure of negative-pressure perfusion, by switching the positions of the first barrel and the second barrel, the device can conduct automatic perfusion and suction injection on medicine and can also measure the capacity and pressure.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a device for automatically measuring the suction capacity and pressure of negative pressure perfusion. Background Art

[0002] With the arrival of an aging society, the incidence of osteoarthritis is gradually increasing. Therefore, many patients in orthopedic clinics need to have joint effusions extracted. When injecting into the joint cavity and some bursae under ultrasound guidance, the effusion has been formed for a long time and has formed a jelly-like state without treatment. Ordinary syringes cannot aspirate the liquid and jelly. In addition, when injecting into the joint cavity, the pressure in some cavities is high and the drug cannot be injected, or the pressure in the joint cavity cannot be accurately assessed. Too much injection of drugs leads to excessive pressure, which may cause tissue damage or cyst rupture.

[0003] During the injection process, ordinary syringes cannot detect the pressure or volume in the joint capsule in real time, which may result in too much or too little drug being injected, thus affecting the treatment effect.

[0004] The present invention is mainly intended to solve the clinical problems that some jelly-like liquids in the joint cavity cannot be aspirated out and some joint cavities have too high pressure to be injected. In addition, the injection pressure and volume in the joint cavity can be objectively displayed during the injection process, so as to achieve accurate evaluation and treatment. Summary of the invention

[0005] In view of this, the present invention provides a negative pressure perfusion suction capacity and pressure automatic measurement device, which switches the positions of the first cylinder and the second cylinder so that the device can both inject drugs and aspirate accumulated fluid, and can automatically measure pressure and capacity during perfusion and aspiration, thereby achieving precise injection and treatment.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A negative pressure perfusion suction capacity and pressure automatic measuring device, comprising:

[0008] A connecting part, one end of which is provided with a connecting head, a through hole is provided in the connecting part, and the through hole is communicated with the connecting head;

[0009] a rotating part, the rotating part being rotatably connected to the connecting part, the rotating part being provided with a first cylinder and a second cylinder, the first cylinder and the second cylinder both being capable of forming a channel with the through hole, the first cylinder being provided with a puncture needle core and a puncture brush, and the second cylinder being provided with a piston rod;

[0010] During puncture, the first cylinder and the through hole form a channel, and the puncture needle core in the first cylinder extends out of the first cylinder for puncture;

[0011] When the accumulated fluid is sucked out, the puncture needle core returns to the first cylinder, the rotating part is rotated, the second cylinder and the through hole form a channel, and the piston rod is pulled to suck out the accumulated fluid.

[0012] Furthermore, the rotating part includes a rotating rod and a rotating disk, the rotating rod is rotatably connected to the connecting part, the rotating disk is arranged at an end of the rotating rod away from the connecting part, the first cylinder and the second cylinder are both connected to the side wall of the rotating rod, and the ends of the first cylinder and the second cylinder away from the connecting part are both connected to the rotating disk.

[0013] Furthermore, it also includes a control system, which includes a first switch and a first automatic telescopic rod, the first automatic telescopic rod is arranged in the first cylinder, one end of the first automatic telescopic rod is connected to the rotating disk, and the other end is connected to the puncture needle, the first switch is electrically connected to the first automatic telescopic rod, and the puncture needle core is controlled to extend or retract into the first cylinder through the first switch.

[0014] Furthermore, the control system also includes a second automatic telescopic rod and a second switch, one end of the second automatic telescopic rod is connected to the rotating disk, and the other end is connected to the puncture brush, and the second switch is electrically connected to the second automatic telescopic rod.

[0015] Furthermore, it also includes an automatic measuring system, which includes a capacity pressure identifier and a driving member, the capacity pressure identifier is connected to the end of the piston rod away from the connecting part, the driving member is arranged at the end of the capacity pressure identifier away from the piston rod and is electrically connected to the capacity pressure identifier, and the end of the driving member away from the capacity pressure identifier is connected to the rotating disk.

[0016] Furthermore, the driving member is a hydraulic cylinder.

[0017] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a negative pressure perfusion suction capacity and pressure automatic measurement device. When injecting medicine, the piston rod is pushed to inject the medicine. When puncturing, the first cylinder and the through hole form a channel, and the puncture needle core in the first cylinder extends out of the first cylinder for puncturing. When the effusion is in a jelly state, the jelly-like effusion is broken up by the puncture brush. When aspirating the effusion, the puncture needle core and the puncture brush are both returned to the first cylinder, and the rotating part is rotated. The second cylinder and the through hole form a channel, and the piston rod is pulled to extract the effusion. The position change of the first cylinder and the second cylinder is completed by the rotating part, so that the device can both inject medicine and aspirate the effusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of the device for automatically measuring the suction capacity and pressure of negative pressure perfusion provided by the present invention;

[0020] Figure 2 Another schematic diagram of the structure of the device for automatically measuring the suction capacity and pressure of negative pressure perfusion provided by the present invention;

[0021] Figure 3 A schematic diagram of the structure in the second cylinder provided by the present invention;

[0022] Figure 4 A schematic diagram of the structure in the first cylinder provided by the present invention;

[0023] Figure 5 This is a schematic structural diagram of the puncture brush provided by the present invention.

[0024] In the figure: 1. connector; 2. connector; 3. piston; 4. puncture needle core; 5. puncture brush; 6. control system; 7. rotating disk; 8. hydraulic cylinder; 9. first cylinder; 10. second cylinder; 11. first automatic telescopic rod; 12. second automatic telescopic rod; 13. rotating rod; 14. capacity pressure identifier; 15. piston rod; 16. first switch; 17. second switch. 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] See also Figure 1-5 The embodiment of the present invention discloses a negative pressure perfusion suction capacity and pressure automatic measurement device, comprising:

[0027] A connecting part 2, one end of which is provided with a connecting head 1, a through hole is provided in the connecting part 2, and the through hole is communicated with the connecting head 1;

[0028] The rotating part is rotatably connected with the connecting part 2, and a first cylinder 9 and a second cylinder 10 are arranged on the rotating part. Both the first cylinder 9 and the second cylinder 10 can form a channel with the through hole. The first cylinder 9 is provided with a puncture needle core 4 and a puncture brush 5, and the second cylinder 10 is provided with a piston rod 15;

[0029] During puncture, the first barrel 9 and the through hole form a channel, and the puncture needle core 4 in the first barrel 9 extends out of the first barrel 9 for puncture. When the effusion is in a jelly state, the puncture brush 5 extends out of the first barrel 9, and the jelly-like effusion is broken up by the puncture brush 5.

[0030] When the accumulated fluid is sucked out, the puncture needle core 4 and the puncture brush 5 are both returned to the first cylinder 9, and the rotating part is rotated, so that the second cylinder 10 and the through hole form a channel, and the piston rod 15 is pulled to extract the accumulated fluid.

[0031] Connect the connection part and the injection needle through the connector 1;

[0032] During the drug injection process, the second cylinder 10 and the through hole form a channel to push the piston rod 15, so that the piston 3 pushes the drug for injection.

[0033] In some embodiments, the rotating part includes a rotating rod 13 and a rotating disk 7. The rotating rod 13 is rotatably connected to the connecting part 2. The rotating disk 7 is arranged at the end of the rotating rod 13 away from the connecting part 2. The first cylinder 9 and the second cylinder 10 are both connected to the side wall of the rotating rod 13, and the ends of the first cylinder 9 and the second cylinder 10 away from the connecting part 2 are both connected to the rotating disk 7.

[0034] The rotating disk 7 is rotated, and the rotating disk 7 drives the rotating rod 13 to drive the position conversion of the first cylinder 9 and the second cylinder 10.

[0035] In some embodiments, a control system 6 is also included, which includes a first switch 16 and a first automatic telescopic rod 11. The first automatic telescopic rod 11 is arranged in the first cylinder 9. One end of the first automatic telescopic rod 11 is connected to the rotating disk 7, and the other end is connected to the puncture needle core 4. The first switch 16 is electrically connected to the first automatic telescopic rod 11, and the puncture needle core 4 is controlled to extend or retract the first cylinder 9 through the first switch 16.

[0036] During the puncture process, the rotating disk 7 is rotated to connect the first cylinder 9 with the through hole, and the first switch 16 is pressed. The first switch 16 controls the extension of the first automatic telescopic rod 11 to extend the puncture needle core 4 to puncture the gel-like effusion. The first switch 16 is pressed again, and the first automatic telescopic rod 11 retracts. The rotating disk 7 is rotated to switch the positions of the first cylinder 9 and the second cylinder 10, so that the second cylinder 10 is connected with the through hole, and the piston rod 15 is pulled to extract the effusion.

[0037] In some embodiments, the control system 6 also includes a second automatic telescopic rod 12 and a second switch 17 , one end of the second automatic telescopic rod 12 is connected to the rotating disk 7 , and the other end is connected to the puncture brush 5 , and the second switch 17 is electrically connected to the second automatic telescopic rod 12 .

[0038] When the effusion is a large volume of jelly, the second switch 17 is pressed, and the second switch 17 controls the second automatic telescopic rod 12 to extend, and the effusion is stirred by the puncture brush 5 to decompose the large volume of gel into small volume of gel, and the second switch 17 is pressed again to return the puncture brush 5 to the first cylinder 9.

[0039] In some embodiments, an automatic measuring system is also included, which includes a capacity pressure identifier 14 and a driving member. The capacity pressure identifier 14 is connected to the end of the piston rod 15 away from the connecting part 2. The driving member is arranged at the end of the capacity pressure identifier 14 away from the piston rod 15 and is electrically connected to the capacity pressure identifier 14. The end of the driving member away from the capacity pressure identifier 14 is connected to the rotating disk 7.

[0040] In some embodiments, the driving member is a hydraulic cylinder 8 .

[0041] When the accumulated liquid is sucked out, the hydraulic cylinder 8 pulls the piston rod 15 to move and suck out the accumulated liquid;

[0042] During the drug injection process, the hydraulic cylinder pushes the piston rod 15 to inject the drug, and the volume pressure identifier 14 measures the pressure and volume in the joint cavity. The injection volume of the drug is controlled according to the measured pressure to avoid excessive pressure caused by excessive injection of drug, thereby causing tissue damage or cyst rupture.

[0043] The working principle of the negative pressure perfusion suction capacity and pressure automatic measuring device of the present invention is as follows: during the treatment process, the rotating disk 7 is rotated to make the first cylinder 9 communicate with the through hole. When the fluid accumulated in the joint cavity is liquid or a small volume of gel, the first switch 16 is pressed to control the first automatic telescopic rod 11 to drive the puncture needle core 4 to extend out of the device for puncture, and the small volume of gel is punctured by the puncture needle core 4. The first switch 16 is pressed again to contract the first automatic telescopic rod 11 to drive the puncture needle core 4 back into the first cylinder 9; when the fluid accumulated in the joint cavity is a large volume of gel, the second switch 17 is pressed to control the second automatic telescopic rod 12 to drive the puncture brush 5 to extend out of the first cylinder 9, and the large volume of gel-like fluid is stirred by the puncture brush 5 to puncture it and decompose it into small volume of gel-like fluid. The second switch 17 is pressed again to retract the second automatic telescopic rod 12, thereby driving the puncture brush 5 back into the first cylinder 9, and rotating the rotating disk 7 to change the positions of the first cylinder 9 and the second cylinder 10. At this time, the second cylinder 10 is connected to the through hole, and the hydraulic cylinder 8 is started. The hydraulic cylinder 8 contracts and drives the piston rod 15 to move away from the connecting part 2 to extract the accumulated fluid in the joint cavity, separate the connecting head 1 and the injection needle, replace the connecting part 2, the second cylinder and the piston rod 15, and the hydraulic cylinder drives the piston rod 15 to suck the medicine, and connects the connecting head 1 to the injection needle again. The hydraulic cylinder drives the piston rod 15 to move in the direction close to the connecting part 2 to inject the medicine, and measures the pressure in the joint cavity through the volume pressure identifier 14 to control the amount of medicine injected into the joint cavity.

[0044] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0045] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A negative pressure perfusion suction capacity and pressure automatic measurement device, characterized in that: include: A connecting part, one end of which is provided with a connecting head, a through hole is provided in the connecting part, and the through hole is communicated with the connecting head; a rotating part, the rotating part being rotatably connected to the connecting part, the rotating part being provided with a first cylinder and a second cylinder, the first cylinder and the second cylinder both being capable of forming a channel with the through hole, the first cylinder being provided with a puncture needle core and a puncture brush, and the second cylinder being provided with a piston rod; During puncture, the first cylinder and the through hole form a channel, and the puncture needle core in the first cylinder extends out of the first cylinder for puncture; When the accumulated fluid is sucked out, the puncture needle core returns to the first cylinder, the rotating part is rotated, the second cylinder and the through hole form a channel, and the piston rod is pulled to suck out the accumulated fluid.

2. The automatic measuring device for negative pressure perfusion suction capacity and pressure according to claim 1, characterized in that: The rotating part includes a rotating rod and a rotating disk, the rotating rod is rotatably connected to the connecting part, the rotating disk is arranged on the end of the rotating rod away from the connecting part, the first cylinder and the second cylinder are both connected to the side wall of the rotating rod, and the ends of the first cylinder and the second cylinder away from the connecting part are both connected to the rotating disk.

3. The automatic measuring device for negative pressure perfusion suction capacity and pressure according to claim 2, characterized in that: It also includes a control system, which includes a first switch and a first automatic telescopic rod, the first automatic telescopic rod is arranged in the first cylinder, one end of the first automatic telescopic rod is connected to the rotating disk, and the other end is connected to the puncture needle, the first switch is electrically connected to the first automatic telescopic rod, and the puncture needle core is controlled to extend or retract into the first cylinder through the first switch.

4. The automatic measuring device for negative pressure perfusion suction capacity and pressure according to claim 3, characterized in that: The control system also includes a second automatic telescopic rod and a second switch, wherein one end of the second automatic telescopic rod is connected to the rotating disk, and the other end is connected to the puncture brush, and the second switch is electrically connected to the second automatic telescopic rod.

5. The automatic measuring device for negative pressure perfusion suction capacity and pressure according to claim 2, characterized in that: It also includes an automatic measuring system, which includes a capacity pressure identifier and a driving member, wherein the capacity pressure identifier is connected to an end of the piston rod away from the connecting portion, the driving member is arranged at an end of the capacity pressure identifier away from the piston rod and is electrically connected to the capacity pressure identifier, and the end of the driving member away from the capacity pressure identifier is connected to the rotating disk.

6. The automatic measuring device for negative pressure perfusion suction capacity and pressure according to claim 5, characterized in that: The driving member is a hydraulic cylinder.

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