A cartilage hemostasis device for mobile surgical vehicle

Abstract

The present invention relates to a cartilage hemostasis device for a mobile operating vehicle, the device comprising a hard hollow rod, a sponge mounting plate, a handle and a sponge-like structure, wherein the sponge mounting plate is fixedly arranged on the first end portion of the hard hollow rod; the sponge mounting plate comprises a mounting disk and a through hole arranged at the center position of the mounting disk; the sponge-like structure is fixedly mounted on the mounting disk and blocks the through hole; the handle is sleeved and fixed on the hard hollow rod, and the second end portion of the hard hollow rod passes through the handle and is exposed to the outside of the handle; a suction port is axially opened at the second end portion, and the suction port is used to communicate with an arthroscopic suction device of the mobile operating vehicle, and the suction force generated by the arthroscopic suction device causes the liquid in the cartilage injury site of the patient to be filtered by the sponge-like structure and then sequentially pass through the through hole at the center position of the mounting disk of the sponge mounting plate, the hollow channel of the hard hollow rod and the suction port at the second end portion of the hard hollow rod and then be discharged.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a cartilage hemostasis device for a mobile operating vehicle. Background Art

[0002] In the process of clinical surgery on the knee joint, shoulder joint and other parts, cartilage tissue bleeding often occurs. In order to keep the damaged cartilage part of the patient dry and free of liquid, the existing technology can only use manual wiping, which will cause pain to the patient and has poor hemostasis effect.

[0003] The mobile operating vehicle is a special vehicle commonly used to facilitate doctors to perform surgery in the field environment. Generally, a mobile operating vehicle is equipped with relatively complete surgical facilities to meet general surgical needs. However, the mobile operating vehicle in the prior art does not have the function of cartilage hemostasis, and the support for some special operations is not complete enough, and there is room for improvement.

[0004] During the process of experimentation and research and development, the applicant found that the mobile surgical carts in the prior art are generally equipped with arthroscopic aspirators. If the arthroscopic aspirator can be applied to cartilage hemostasis, the bleeding of cartilage tissue generated at the cartilage injury site of the patient can be sucked out at any time. This is better than the hemostasis effect of manual wiping, and can keep the cartilage injury site of the patient in a liquid-free and dry state. However, the suction force of the arthroscopic aspirator in the prior art is not designed for hemostasis. Too much suction force can easily cause the cartilage injury site of the patient that has stopped bleeding to bleed again. Summary of the invention

[0005] The present invention aims to provide a cartilage hemostasis device for a mobile operating vehicle. The technical problems to be solved include at least how to combine the cartilage hemostasis device with the mobile operating vehicle and design a suction control method for the arthroscopic aspirator of the mobile operating vehicle, so that the arthroscopic aspirator of the mobile operating vehicle can be used to keep the patient's cartilage injury site in a liquid-free and dry state, thereby avoiding re-bleeding of the patient's cartilage injury site that has already stopped bleeding due to excessive suction.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a cartilage hemostasis device for a mobile surgical vehicle, comprising a hard hollow rod, a sponge mounting plate, a handle and a sponge-like structure, wherein the center of the hard hollow rod is provided with a hollow channel extending along the axial direction, and the sponge mounting plate is fixedly arranged at the first end of the hard hollow rod; the sponge mounting plate comprises a mounting plate and a through hole arranged at the center position of the mounting plate, and the through hole is connected to the hollow channel of the hard hollow rod; the sponge-like structure is fixedly installed on the mounting plate and the through hole at the center position of the mounting plate is connected to the sponge-like structure. Blocked; the handle sleeve is fixed on the hard hollow rod, and the second end portion of the hard hollow rod passes through the handle and is exposed to the outside of the handle; a suction port is axially opened at the second end portion, and the suction port is used to communicate with the arthroscopic suction device of the mobile operating vehicle, and the suction force generated by the arthroscopic suction device allows the liquid in the patient's cartilage injury site to be filtered through the sponge-like structure and then pass through the through hole at the center position of the mounting plate of the sponge mounting plate, the hollow channel of the hard hollow rod and the suction port at the second end portion of the hard hollow rod in sequence and then be discharged.

[0007] Preferably, the angle α between the mounting plate and the hard hollow rod is greater than 0 degrees and less than 90 degrees.

[0008] Preferably, the mounting plate and the hard hollow rod are connected together by welding.

[0009] Preferably, the mounting plate and the hard hollow rod are an integrally formed structure.

[0010] Preferably, the mounting plate is circular or elliptical.

[0011] Preferably, the edge positions of the mounting plate are all passivated and have no sharp edges.

[0012] Preferably, the handle comprises a truncated cone portion, a cylindrical portion and a disc portion, and the cylindrical portion is fixedly connected between the truncated cone portion and the disc portion.

[0013] Preferably, the outer diameter of the cylindrical portion is smaller than the outer diameter of the disc portion, and is also smaller than the outer diameter of the bottom surface of the truncated cone portion.

[0014] Preferably, the sponge-like structure is a hemostatic sponge or a hemostatic absorbent cotton.

[0015] Preferably, the relationship between the thickness h of the sponge-like structure of the present invention and the suction F generated by the arthroscopic aspirator of the mobile surgical vehicle satisfies a thickness-suction function, and the thickness-suction function is specifically:

[0016]

[0017] Wherein, F is the suction force generated by the arthroscopic aspirator of the mobile surgical vehicle, in Newtons;

[0018] h is the thickness of the sponge-like structure, in millimeters.

[0019] Beneficial Effects

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The cartilage hemostasis device for a mobile operating vehicle described in the present invention can be combined with the cartilage hemostasis device and the mobile operating vehicle. By designing a suction control means for the arthroscopic aspirator of the mobile operating vehicle, the arthroscopic aspirator of the mobile operating vehicle can be used to keep the patient's cartilage injury site in a liquid-free and dry state, thereby avoiding re-bleeding of the patient's cartilage injury site that has already stopped bleeding due to excessive suction.

[0022] In addition, the sponge-like structure described in the present invention has the ability to store liquid, and can reduce the suction force generated by the arthroscopic aspirator, and can also prevent the cartilage injury site of the patient who has stopped bleeding from bleeding again due to excessive suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the specific implementation methods of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0024] Figure 1 It is a schematic diagram of the structure of the cartilage hemostasis device for a mobile operating vehicle when the sponge-like structure is not installed.

[0025] Figure 2 It is a front view of the sponge mounting plate of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure of the cartilage hemostasis device for the mobile operating vehicle after the sponge-like structure is installed.

[0027] Figure 4 is the fitting curve of the thickness-suction function. DETAILED DESCRIPTION

[0028] The present invention is described in more detail hereinafter to facilitate understanding of the present invention.

[0029] like Figures 1 to 4As shown, the cartilage hemostasis device for a mobile surgical vehicle of the present invention comprises a hard hollow rod 1, a sponge mounting plate 2, a handle 3 and a sponge-like structure 4, wherein the center of the hard hollow rod 1 is provided with a hollow channel extending along the axial direction, and the sponge mounting plate 2 is fixedly arranged at the first end of the hard hollow rod 1; the sponge mounting plate 2 comprises a mounting plate 21 and a through hole 22 arranged at the center position of the mounting plate 21, and the through hole 22 is connected with the hollow channel of the hard hollow rod 1; the sponge-like structure 4 is fixedly installed on the mounting plate 21 and blocks the through hole 22 at the center position of the mounting plate 21; The handle 3 is sleeved and fixed on the hard hollow rod 1, and the second end portion 11 of the hard hollow rod 1 passes through the handle 3 and is exposed outside the handle 3; the second end portion 11 is axially opened with a suction port, which is used to communicate with the arthroscopic suction device of the mobile operating vehicle, and the suction force generated by the arthroscopic suction device allows the liquid (including blood or other body fluids) in the cartilage injury area of ​​the patient to be filtered by the sponge-like structure and then pass through the through hole 22 at the center position of the mounting plate 21 of the sponge mounting plate 2, the hollow channel of the hard hollow rod 1 and the suction port of the second end portion 11 of the hard hollow rod 1 and then be discharged.

[0030] Preferably, an internal thread is provided on the inner wall of the suction port of the second end portion 11 for connecting with the arthroscopic aspirator of the mobile surgical vehicle through the thread.

[0031] Preferably, an external thread is provided on the outer wall of the suction port of the second end portion 11 for connecting with the arthroscopic suction device of the mobile operating vehicle through the thread.

[0032] Preferably, the angle α between the mounting plate 21 and the hard hollow rod 1 is greater than 0 degrees and less than 90 degrees.

[0033] Figure 1 The imaginary extension line 23 of the mounting plate 21 is used to describe the angle α between the mounting plate 21 and the hard hollow rod 1 .

[0034] By limiting the angle α to be greater than 0 degrees and less than 90 degrees, the inlet of the mobile surgical vehicle cartilage hemostasis device of the present invention is set on the side, and the top of the mobile surgical vehicle cartilage hemostasis device is a blunt-head structure, which can avoid hurting the patient. Different angles α can adapt to different surgical positions, and doctors can choose a suitable angle α according to specific surgical conditions.

[0035] Preferably, the mounting plate 21 and the hard hollow rod 1 are connected together by welding.

[0036] Preferably, the mounting plate 21 and the hard hollow rod 1 are an integrally formed structure.

[0037] Preferably, the mounting plate 21 is circular or elliptical.

[0038] Preferably, the edge positions of the mounting plate 21 are all passivated and have no sharp edges.

[0039] Preferably, the handle 3 comprises a truncated cone portion 31 , a cylindrical portion 32 and a disc portion 33 , and the cylindrical portion 32 is fixedly connected between the truncated cone portion 31 and the disc portion 33 .

[0040] Preferably, the outer diameter of the cylindrical portion 32 is smaller than the outer diameter of the disc portion 33 , and is also smaller than the outer diameter of the bottom surface of the truncated cone portion 31 .

[0041] The above structure of the handle 3 is convenient for doctors to hold, so that doctors can exert better force when using the cartilage hemostasis device for the mobile operating vehicle of the present invention to stop bleeding.

[0042] Preferably, the hard hollow rod 1 and the sponge mounting plate 2 are made of stainless steel, and the handle 3 is made of acrylonitrile-butadiene-styrene plastic or KRO-3 resin.

[0043] Preferably, the sponge-like structure is a hemostatic sponge or a hemostatic absorbent cotton.

[0044] Preferably, the relationship between the thickness h of the sponge-like structure of the present invention and the suction F generated by the arthroscopic aspirator of the mobile surgical vehicle satisfies a thickness-suction function, and the thickness-suction function is specifically:

[0045]

[0046] Wherein, F is the suction force generated by the arthroscopic aspirator of the mobile surgical vehicle, in Newtons;

[0047] h is the thickness of the sponge-like structure, in millimeters.

[0048] The thickness-suction function is a fitting curve formula fitted based on a large amount of test data. When the mobile surgical vehicle cartilage hemostasis device is used, the suction port needs to be connected to the arthroscopic aspirator of the mobile surgical vehicle, and the sponge mounting plate 2 and the sponge-like structure 4 are inserted into the cartilage injury site of the patient. The suction force generated by the arthroscopic aspirator cannot be too large, otherwise it will cause the cartilage injury site of the patient that has stopped bleeding to bleed again; nor can it be too small, otherwise it will not be possible to keep the cartilage injury site of the patient in a liquid-free and dry state.

[0049] In clinical practice, when performing surgery on the knee joint, shoulder joint and other parts, a tiny channel is usually opened on the patient's skin in the form of minimally invasive surgery, such as opening a small hole in the joint, and the sponge mounting plate 2 and the sponge-like structure 4 are inserted into the patient's cartilage injury site through the small hole. With the help of imaging methods such as arthroscopy, the internal condition of the patient's cartilage injury site can be observed.

[0050] In order to obtain sufficiently accurate suction, the applicant conducted a large number of clinical trials. During the test, sponge-like structures 4 of different thicknesses were used for the test. For sponge-like structures 4 of the same thickness, the suction generated by the arthroscopic aspirator was gradually increased in an arithmetic progression. At the same time, the arthroscopic observation was used to observe whether there was liquid in the cartilage injury site of the patient. The suction generated by the arthroscopic aspirator when there was no liquid (i.e., the cartilage injury site of the patient continued to remain in a dry state without liquid) was recorded. The above suction values ​​and the thickness values ​​of the sponge-like structure 4 were listed in a rectangular coordinate system and fitted by SCILAB software to form Figure 4 The curve shown, the function corresponding to the curve is the thickness-suction function.

[0051] It should be pointed out that the units (millimeter, Newton) of the physical quantities (thickness h of the sponge-like structure, suction F generated by the arthroscopic suction device of the mobile surgical vehicle) in the thickness-suction function are only used to indicate the magnitude of the values ​​and do not participate in the calculations in the formula. This is because the thickness-suction function is a fitting function obtained through data fitting, rather than a physical formula or mathematical formula obtained through strict mathematical derivation. For example, assuming that h is 10 mm, if the unit is changed to centimeter, then h becomes 1 centimeter, and the unit "millimeter" is only used to indicate the magnitude of the value "10" and does not participate in the calculations in the function. If the unit "millimeter" is not limited to the formula, it may cause technical personnel in this field to use the value "1 centimeter" into the formula calculation, resulting in confusing calculation results. The same is true for the unit "Newton", which does not participate in the calculations in the formula.

[0052] When the cartilage hemostasis device for a mobile operating vehicle described in the present invention is in use, the suction port of the second end portion 11 of the hard hollow rod 1 is connected to the arthroscopic suction device of the mobile operating vehicle, the sponge mounting plate 2 and the sponge-like structure 4 are inserted into the cartilage injury site of the patient, and the arthroscopic suction device is started. The suction force generated by the arthroscopic suction device conforming to the thickness-suction function causes the liquid (including blood or other body fluids) in the cartilage injury site of the patient to be filtered by the sponge-like structure and then pass through the through hole 22 at the center position of the mounting plate 21 of the sponge mounting plate 2, the hollow channel of the hard hollow rod 1 and the suction port of the second end portion 11 of the hard hollow rod 1 in sequence and then be discharged.

[0053] The above describes the preferred embodiments of the present invention, but it is not intended to limit the present invention. Those skilled in the art may make improvements and changes to the embodiments disclosed herein without departing from the scope and spirit of the present invention.

Claims

1. A cartilage hemostasis device for a mobile surgical vehicle, characterized in that: The cartilage hemostasis device for a mobile operating vehicle comprises a hard hollow rod, a sponge mounting plate, a handle and a sponge-like structure, wherein a hollow channel extending along the axial direction is arranged at the center of the hard hollow rod, and the sponge mounting plate is fixedly arranged at the first end of the hard hollow rod; the sponge mounting plate comprises a mounting plate and a through hole arranged at the center of the mounting plate, and the through hole is communicated with the hollow channel of the hard hollow rod; the sponge-like structure is fixedly mounted on the mounting plate and blocks the through hole at the center of the mounting plate; the handle is sleeved and fixed on the hard hollow rod, and the second end of the hard hollow rod passes through the handle and is exposed to the outside of the handle; a suction port is opened axially at the second end, and the suction port is used to communicate with the arthroscopic suction device of the mobile operating vehicle, and the suction force generated by the arthroscopic suction device causes the liquid at the cartilage injury site of the patient to be filtered by the sponge-like structure and then sequentially pass through the through hole at the center of the mounting plate of the sponge mounting plate, the hollow channel of the hard hollow rod and the suction port at the second end of the hard hollow rod and then be discharged; The sponge-like structure is a hemostatic sponge or hemostatic absorbent cotton; The relationship between the thickness h of the sponge-like structure and the suction F generated by the arthroscopic aspirator of the mobile surgical vehicle satisfies the thickness-suction function, and the thickness-suction function is specifically: Wherein, F is the suction force generated by the arthroscopic aspirator of the mobile surgical vehicle, in Newtons; h is the thickness of the sponge-like structure, in millimeters.

2. The cartilage hemostasis device for a mobile surgical vehicle according to claim 1, characterized in that: The angle α between the mounting plate and the hard hollow rod is greater than 0 degrees and less than 90 degrees.

3. The cartilage hemostasis device for a mobile surgical vehicle according to claim 1, characterized in that: The mounting plate and the hard hollow rod are connected together by welding.

4. The cartilage hemostasis device for a mobile surgical vehicle according to claim 1, characterized in that: The mounting plate and the hard hollow rod are an integrally formed structure.

5. The cartilage hemostasis device for a mobile surgical vehicle according to claim 1, characterized in that: The installation plate is circular or oval.

6. The cartilage hemostasis device for a mobile surgical vehicle according to claim 1, characterized in that: The edge positions of the installation plate are all passivated and have no sharp edges.

7. The cartilage hemostasis device for a mobile surgical vehicle according to claim 1, characterized in that: The handle comprises a truncated cone portion, a cylindrical portion and a disc portion, and the cylindrical portion is fixedly connected between the truncated cone portion and the disc portion.

8. The cartilage hemostasis device for a mobile surgical vehicle according to claim 7, characterized in that: The outer diameter of the cylindrical portion is smaller than the outer diameter of the disc portion, and is also smaller than the outer diameter of the bottom surface of the truncated cone portion.

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