A device for visually removing hematoma

Abstract

The present invention discloses a visual hematoma removal device, comprising a support body, an endoscope assembly and an outer sleeve, wherein the support body has a suction cavity inside, and the rear end of the outer sleeve is fixedly connected to the front end of the support body. The endoscope assembly comprises an endoscope and a rod body, wherein the rod body can pass through the rear part of the support body and extend into the outer sleeve via the suction cavity, and the lens of the endoscope is arranged at the front end of the rod body and extends to the front end of the outer sleeve. A suction tube is arranged on the side wall of the support body, wherein one end of the suction tube is connected to the outer sleeve through the suction cavity, and the other end is used for detachably connecting an aspirator. The visual hematoma removal device disclosed in the present invention combines endoscope technology, can achieve zero object distance imaging, and transforms the original blind operation of puncture and catheterization, hematoma suction, etc. into a visual operation, and can also suction blood and water in the brain tissue to avoid affecting the imaging effect of the lens, thereby improving the operation safety under the visual state, and also improving the accuracy of hematoma removal and the efficiency of surgery.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a device for visually removing hematomas. Background Art

[0002] After cerebral hemorrhage, the hematoma needs to be removed and discharged from the outside of the skull. At present, the hard channel and soft channel technology are used clinically to suck the hematoma out of a tube. This technology has the advantages of small diameter, small trauma, and simple surgical method. However, its disadvantage is that the position of the tube cannot be accurately known when it is inserted. After the channel is placed, it is impossible to know whether the suction port is sucked into the hematoma during suction. It is very easy to damage the brain tissue by blindly operating the suction by the doctor's hand feeling, resulting in nerve damage and intraoperative bleeding, which greatly affects the surgical clearance rate and is difficult to achieve the desired treatment effect. With the development of technology, endoscopes with 0 object distance imaging have appeared, such as the endoscopes described in the patent documents of patent numbers CN201821422091.8 and CN201821421203.8, which provide new possibilities for the visual removal of hematomas. In addition, there is usually a certain amount of blood and water around the hematoma inside the skull and brain tissue, and the blood and water will stick to the outer wall of the lens, causing great interference to the lens imaging, or even unable to image. Therefore, the existing technology urgently needs to be further improved and improved. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to propose a device for visually removing hematomas, so as to solve the problem that during the hematoma removal process, the doctor only relies on blind operation of suctioning the hematoma by feel, which can easily damage the brain tissue, cause nerve damage and intraoperative bleeding, and greatly affect the surgical removal rate.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0005] A device for visually removing hematoma comprises a support body, an endoscope assembly and an outer sleeve. The support body has a suction cavity inside, and the rear end of the outer sleeve is fixedly connected to the front end of the support body.

[0006] The endoscope assembly comprises an endoscope and a rod body. The rod body can pass through the rear part of the support body and extend into the outer sleeve through the suction cavity. The lens of the endoscope is arranged at the front end of the rod body and extends to the front port of the outer sleeve.

[0007] A suction tube is arranged on the side wall of the support body, one end of the suction tube is communicated with the outer sleeve through the suction cavity, and the other end is used for detachably connecting with the suction device.

[0008] Furthermore, the support body is composed of a front sleeve, a first transition sleeve and an endoscope base which are arranged in sequence from front to back and are detachably fixed and sealed together.

[0009] The rear end of the rod body passes through the rear side of the endoscope base, and the outer wall of the rod body is fixedly and sealedly matched with the endoscope base.

[0010] The rear end of the outer sleeve is plugged into the front end of the first chamber of the front sleeve, and the outer wall of the outer sleeve is fixedly and sealedly matched with the front sleeve.

[0011] Furthermore, the interior of the front sleeve has a first chamber, the interior of the endoscope base has a second chamber, the interior of the first transition sleeve is a third chamber, and the first, second and third chambers cooperate to form the suction cavity.

[0012] Furthermore, a visual hematoma removal device is provided with a second transition sleeve and an inner sleeve, the interior of the second transition sleeve is a fourth chamber, the rear end of the inner sleeve is fixedly sealed and plugged with the front end of the second transition sleeve, and the interior thereof is communicated with the fourth chamber.

[0013] The second transition sleeve replaces the first transition sleeve, and cooperates with the endoscope base and the front sleeve in a detachable, fixed and sealed manner to form the support body. The fourth chamber cooperates with the first and second chambers to form the suction cavity.

[0014] Furthermore, after the second transition sleeve is assembled with the endoscope base and the front sleeve, the rod body, the inner sleeve and the outer sleeve are sequentially sleeved from the inside to the outside, the front end of the inner sleeve passes through the outer sleeve, and the front end of the rod body passes through the inner sleeve.

[0015] The inner sleeve and the outer sleeve cooperate to form a first annular cavity, and the inner sleeve and the rod body cooperate to form a second annular cavity.

[0016] Furthermore, the front sleeve, the first transition sleeve, the second transition sleeve and the endoscope base are all cylindrical structures, and the axial length of the second transition sleeve is smaller than the axial length of the first transition sleeve.

[0017] The front end of the endoscope base has a first convex portion, and the rear end of the first transition sleeve has a first concave portion. The first convex portion of the endoscope base can be inserted into the first concave portion and matched with the rear end thread of the first transition sleeve.

[0018] The front end of the first transition sleeve has a second convex portion, and the rear end of the front sleeve has a second concave portion. The second convex portion of the first transition sleeve can be inserted into the second concave portion and matched with the rear end thread of the front sleeve.

[0019] The front end of the second transition sleeve has a third convex portion, and the rear end of the second transition sleeve has a third concave portion.

[0020] When the second transition sleeve is assembled with the endoscope base and the front sleeve, the first clamping protrusion of the endoscope base can be inserted into the third recessed portion and cooperate with the rear end thread of the second transition sleeve, and the third clamping protrusion of the second transition sleeve can be inserted into the second recessed portion and cooperate with the rear end thread of the front sleeve.

[0021] Furthermore, two first guide sliding blocks are symmetrically arranged on the side wall of the first convex portion, a first spiral groove which is gap-matched with the first guide sliding block is opened on the inner wall of the first recessed portion, and a first sealing ring is arranged on the front side of the first spiral groove.

[0022] Two second guide slide blocks are symmetrically arranged on the side wall of the second convex portion, a second spiral groove matched with the second guide slide block is opened on the inner wall of the second recessed portion, and a second sealing ring is arranged on the front side of the second spiral groove.

[0023] Two third guide slide blocks matched with the second spiral groove are symmetrically arranged on the side wall of the third clamping protrusion, a third spiral groove matched with the first guide slide block is opened on the inner wall of the third recessed portion, and a third sealing ring is arranged on the front side of the third spiral groove.

[0024] Furthermore, the rod body is a rigid straight rod with a circular cross-section, the endoscope lens is fixed to the front end of the rod body, the rod body is coaxially arranged with the endoscope base, and its outer wall is fixedly sealed with the endoscope base.

[0025] Furthermore, the outer sleeve is a metal straight circular tube with a uniform cross-section, and is coaxially arranged relative to the inner sleeve and the rod body.

[0026] The front end surfaces of the inner sleeve and the outer sleeve are flush, the front end outer edges of the inner sleeve and the outer sleeve are chamfered, and the lens surface of the endoscope cooperates with the front end surfaces of the inner sleeve and the outer sleeve to form a smooth rounded structure.

[0027] Furthermore, an air suction channel is provided on the second transition sleeve, and the air suction channel is located outside the inner sleeve, and the first annular cavity is communicated with the suction cavity through the air suction channel.

[0028] Furthermore, the outer walls of the front sleeve, the first transition sleeve, the second transition sleeve and the endoscope base are all provided with indicating marks along their axial directions.

[0029] Furthermore, the surface of the outer sleeve is provided with scale lines along its axial direction.

[0030] Furthermore, a mounting hole is provided on the outer wall of the support body, and one end of the straw is inserted into the mounting hole and fixedly and sealedly connected to the inner wall thereof.

[0031] By adopting the above technical solution, the beneficial technical effects of the present invention are:

[0032] The visual hematoma removal device disclosed in the present invention combines endoscopic technology, can achieve zero object distance imaging, realize visualization inside the cranial brain tissue, and transform the original blind operations of puncture, catheterization, and hematoma aspiration into visual operations. At the same time, blood and water in the brain tissue can be aspirated to avoid affecting the imaging effect of the lens. The operational safety is improved under the visual state, and the accuracy of hematoma removal and the efficiency of the operation are also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a first implementation mode of a device for visually removing hematoma according to the present invention.

[0034] Figure 2 It is a structural cross-sectional view of a first implementation of a device for visually removing hematomas according to the present invention.

[0035] Figure 3 It is a structural schematic diagram of a second implementation of a device for visually removing hematomas according to the present invention.

[0036] Figure 4 It is a structural cross-sectional view of a second implementation of a device for visually removing hematomas according to the present invention.

[0037] Figure 5 This is a structural breakdown diagram of a second implementation of a device for visually removing hematomas according to the present invention.

[0038] Figure 6 It is a structural schematic diagram of a third implementation of a device for visually removing hematomas according to the present invention.

[0039] Figure 7 It is a structural cross-sectional view of a third implementation of a device for visually removing hematomas according to the present invention.

[0040] Figure 8 It is a structural decomposition diagram of a third implementation of a device for visually removing hematomas according to the present invention.

[0041] Fig. 9 yes Figure 6 A schematic structural diagram of the second transition sleeve viewed from the front side is shown in FIG.

[0042] Fig.10 yes Figure 6 A schematic structural diagram of the second transition sleeve as viewed from the rear side is shown in FIG. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with the accompanying drawings:

[0044] Embodiment 1, combination Figure 1 and Figure 2 A device for visually removing hematoma includes a support body 1, an endoscope assembly and an outer sleeve 2. The support body 1 has a suction cavity inside, and the rear end of the outer sleeve 2 is fixedly connected to the front end of the support body 1. The outer sleeve 2 is a steel straight round tube with equal cross-section, and the front end surface of the outer sleeve 2 is flush. The surface of the outer sleeve 2 is provided with scale lines along its axial direction, and the scale lines can indicate the depth of insertion into the brain.

[0045] The endoscope assembly includes an endoscope 3 and a rod body 4. The rod body 4 can pass through the rear of the support body 1 and extend into the outer sleeve 2 through the suction cavity. The lens of the endoscope 3 is arranged at the front end of the rod body 4 and extends to the front port of the outer sleeve 2.

[0046] Furthermore, the rod body 4 is a rigid straight rod with a circular cross section, and the outer wall of the rod body 4 is fixedly sealed and connected to the rear of the support body 1. The inner diameter of the outer sleeve 2 is larger than the outer diameter of the rod body 4. After the outer sleeve 2 and the rod body 4 are assembled, an annular cavity for removing hematoma is formed between the two, and the annular cavity is communicated with the suction cavity.

[0047] A suction tube 5 is provided on the side wall of the support body 1, one end of the suction tube 5 is connected to the outer sleeve 2 through the suction cavity, and the other end is used for detachably connecting to the suction device 6. Preferably, a mounting hole connected to the suction cavity is opened on the rear outer wall of the support body 1, and one end of the suction tube 5 is inserted into the mounting hole and fixedly sealed and connected to the rear of the support body 1.

[0048] The working process of the visual hematoma removal device described in Example 1 is as follows: the tube mouth of the outer sleeve 2 is placed in the hematoma of the brain, and negative pressure suction is performed through the aspirator 6 to suck the blood clot into the annular cavity between the outer sleeve 2 and the rod body 4 and flow backward into the suction cavity, and then enter the inside of the aspirator 6 through the suction tube 5 to complete the removal of the hematoma inside the brain. During the above operation, the endoscope 3 is used to observe to ensure that the tissue sucked is only the blood clot, so as to avoid the outer sleeve 2 from injuring or sucking brain tissue, thereby ensuring the safety of the above surgical operation.

[0049] Embodiment 2, combined Figures 3 to 5 A device for visually removing hematoma includes a support body 1, an endoscope assembly and an outer sleeve 2. The support body 1 has a suction cavity inside, and the rear end of the outer sleeve 2 is fixedly connected to the front end of the support body 1. The support body 1 is composed of a front sleeve 11, a first transition sleeve 12 and an endoscope base 13 arranged in sequence from front to back, which are detachably fixed and sealed.

[0050] The endoscope assembly includes an endoscope 3 and a rod body 4. The rod body 4 can pass through the rear part of the support body 1 and extend into the outer tube 2 through the suction cavity. The lens of the endoscope 3 is arranged at the front end of the rod body 4 and extends to the front end of the outer tube 2. One end of the suction tube 5 is fixedly plugged with the side wall of the endoscope base 13, one end of the suction tube 5 is connected to the outer tube 2 through the suction cavity, and the other end is used for detachably connecting the suction device 6.

[0051] The front sleeve 11, the first transition sleeve 12 and the endoscope base 13 are all cylindrical structures. The front sleeve 11 has a first chamber inside, the endoscope base 13 has a second chamber inside, and the first transition sleeve 12 has a third chamber that passes through from front to back. The first, second and third chambers cooperate to form the suction cavity.

[0052] The rear end of the rod body 4 passes through the rear side of the endoscope base 13, and its outer wall is fixedly sealed with the endoscope base 13. The rear end of the outer sleeve 2 is plugged into the front end of the first chamber of the front sleeve 11, and its outer wall is fixedly sealed with the front sleeve 11.

[0053] The front end of the endoscope base 13 has a first convex portion 131, and the rear end of the first transition sleeve 12 has a first recessed portion. The first convex portion 131 of the endoscope base 13 can be inserted into the first recessed portion and threadedly matched with the rear end of the first transition sleeve 12. The front end of the first transition sleeve 12 has a second convex portion 121, and the rear end of the front sleeve 11 has a second recessed portion. The second convex portion 121 of the first transition sleeve 12 can be inserted into the second recessed portion and threadedly matched with the rear end of the front sleeve 11.

[0054] Furthermore, two first guide sliders 132 are symmetrically arranged on the side wall of the first convex portion 131, a first spiral groove matching with the first guide slider 132 is provided on the inner wall of the first recessed portion, the first guide slider 132 is gap-matched with the first spiral groove at the rear end of the first transition sleeve 12, and a first sealing ring 123 is arranged on the front side of the first spiral groove. Two second guide sliders 122 are symmetrically arranged on the side wall of the second convex portion 121, a second spiral groove matching with the second guide slider 122 is provided on the inner wall of the second recessed portion, and a second sealing ring 111 is arranged on the front side of the second spiral groove.

[0055] The rod body 4 is a rigid straight rod with a circular cross section. The lens of the endoscope 3 is fixed to the front end of the rod body 4. The rod body 4 is coaxially arranged with the endoscope base 13, and its outer wall is fixedly sealed with the endoscope base 13.

[0056] The outer sleeve 2 is a steel straight round tube with a uniform cross section, and the front end surface of the outer sleeve 2 is flush. The outer sleeve 2 is a thin-walled structure, and scale lines are arranged on its surface along its axial direction, and the scale lines can mark the depth of insertion into the brain. The outer sleeve 2 and the rod body 4 are coaxially arranged relative to each other, and the inner diameter of the outer sleeve 2 is larger than the outer diameter of the rod body 4. After the outer sleeve 2 and the rod body 4 are assembled, an annular cavity for absorbing hematoma is formed between the two, and the annular cavity is communicated with the suction cavity.

[0057] The working process of the device for visually removing hematoma described in Example 2 is the same as that of Example 1, and will not be repeated here.

[0058] Embodiment 3, combined Figures 3 to 10 A device for visually removing hematoma includes a support body 1, an endoscope assembly and an outer sleeve 2. The support body 1 has a suction cavity inside, and the rear end of the outer sleeve 2 is fixedly connected to the front end of the support body 1. The support body 1 is composed of a front sleeve 11, a first transition sleeve 12 and an endoscope base 13 arranged in sequence from front to back, which are detachably fixed and sealed.

[0059] The front sleeve 11 has a first chamber inside, the endoscope base 13 has a second chamber inside, and the first transition sleeve 12 has a third chamber inside. The first, second, and third chambers cooperate to form the suction cavity. The outer wall of the endoscope base 13 is provided with a mounting hole that communicates with the suction cavity, and one end of the suction tube 5 is inserted into the mounting hole and fixedly and sealedly connected to the inner wall thereof.

[0060] The rear end of the rod body 4 passes through the rear side of the endoscope base 13, and its outer wall is fixedly sealed with the endoscope base 13. The rear end of the outer sleeve 2 is plugged into the front end of the first chamber of the front sleeve 11, and its outer wall is fixedly sealed with the front sleeve 11.

[0061] The endoscope assembly includes an endoscope 3 and a rod body 4. The rod body 4 can pass through the rear part of the support body 1 and extend into the outer tube 2 through the suction cavity. The lens of the endoscope 3 is arranged at the front end of the rod body 4 and extends to the front end of the outer tube 2. A suction tube 5 is arranged on the side wall of the endoscope base 13. One end of the suction tube 5 is connected to the outer tube 2 through the suction cavity, and the other end is used for detachably connecting the suction device 6.

[0062] The front sleeve 11, the first transition sleeve 12 and the endoscope base 13 are all cylindrical structures. The front end of the endoscope base 13 has a first convex portion 131, and the rear end of the first transition sleeve 12 has a first recessed portion. The first convex portion 131 of the endoscope base 13 can be inserted into the first recessed portion and cooperate with the rear end thread of the first transition sleeve 12.

[0063] The front end of the first transition sleeve 12 has a second convex portion 121 , and the rear end of the front sleeve 11 has a second recessed portion. The second convex portion 121 of the first transition sleeve 12 can be inserted into the second recessed portion and matched with the rear end thread of the front sleeve 11 .

[0064] Furthermore, two first guide sliders 132 are symmetrically arranged on the side wall of the first convex portion 131, a first spiral groove matching the first guide slider 132 is provided on the inner wall of the first concave portion, and a first sealing ring 123 is arranged on the front side of the first spiral groove. Two second guide sliders 122 are symmetrically arranged on the side wall of the second convex portion 121, a second spiral groove matching the second guide slider 122 is provided on the inner wall of the second concave portion, and a second sealing ring 111 is arranged on the front side of the second spiral groove.

[0065] A visual hematoma removal device is provided with a second transition sleeve 7 and an inner sleeve 8. The interior of the second transition sleeve 7 is a fourth chamber. The rear end of the inner sleeve 8 is fixedly sealed and plugged with the front end of the second transition sleeve 7, and the interior thereof is communicated with the fourth chamber.

[0066] The second transition sleeve 7 replaces the first transition sleeve 12, and is detachably fixed and sealed with the endoscope base 13 and the front sleeve 11 to form the support body 1. The fourth chamber cooperates with the first and second chambers to form the suction chamber. The second transition sleeve 7 is also a cylindrical structure, and the axial length of the second transition sleeve 7 is less than the axial length of the first transition sleeve 12. There is a difference in the axial lengths of the first transition sleeve 12 and the second transition sleeve 7. When assembling the second transition sleeve 7, the front end of the rod body 4 protrudes to facilitate puncture; and when assembling the first transition sleeve 12, the front end of the rod body 4 is closer to the open end face of the outer sleeve 21 to facilitate observation and removal of hematoma.

[0067] The rear end of the inner sleeve 8 is inserted into the front end of the second transition sleeve 7 and is coaxially fixedly connected thereto. The front end of the second transition sleeve 7 has a third convex portion 71 and the rear end thereof has a third concave portion.

[0068] The outer walls of the front sleeve 11, the first transition sleeve 12, the second transition sleeve 7 and the endoscope base 13 are all provided with indication marks 14 along their axial direction. After the front sleeve 11, the endoscope base 13 and the first transition sleeve 12 are assembled, or after the front sleeve 11, the endoscope base 13 and the second transition sleeve 7 are assembled, the indication marks are all on the same straight line, which is used to indicate the correct assembly and facilitate the determination of the direction of the lens of the endoscope 3 during operation.

[0069] When the second transition sleeve 7 is assembled with the endoscope base 13 and the front sleeve 11, the first clamping protrusion 131 of the endoscope base 13 can be inserted into the third recessed portion and cooperate with the rear end thread of the second transition sleeve 7, and the third clamping protrusion 71 of the second transition sleeve 7 can be inserted into the second recessed portion and cooperate with the rear end thread of the front sleeve 11.

[0070] Specifically, two third guide slide blocks 72 cooperating with the second spiral groove are symmetrically arranged on the side wall of the third convex portion 71, a third spiral groove 75 cooperating with the first guide slide block 132 is opened on the inner wall of the third recessed portion, and a third sealing ring 73 is arranged on the front side of the third spiral groove 75.

[0071] Furthermore, the first guide sliding block 132 is clearance-matched with the first spiral groove at the rear end of the first transition sleeve 12. When the endoscope base 13 is turned to one side by hand, the front end of the first clamping protrusion 131 of the endoscope base 13 unevenly squeezes the first sealing ring 123. While effectively ensuring the seal, the rod body 4 equipped with the endoscope 3 can be properly swung in the outer sleeve 21, which is more conducive to comprehensive observation of the endoscope 3 and is more conducive to the safety of blood clot suction and the convenience of operation.

[0072] The rod body 4 is a rigid straight rod with a circular cross section. The lens of the endoscope 3 is fixed to the front end of the rod body 4. The rod body 4 is coaxially arranged with the endoscope base 13, and its outer wall is fixedly sealed with the endoscope base 13. The outer sleeve 2 is a steel straight round tube with a uniform cross section, and is coaxially arranged with the inner sleeve 8 and the rod body 4 to form a transition between the thinner rod body 4 and the thicker outer sleeve 2. The outer sleeve 2 is a thin-walled structure, and scale lines are arranged on its surface along its axial direction, and the depth of insertion into the brain can be marked by the scale lines.

[0073] After the second transition sleeve 7 is assembled with the endoscope base 13 and the front sleeve 11, the rod body 4, the inner sleeve 8 and the outer sleeve 2 are sequentially sleeved from the inside to the outside, the front end of the inner sleeve 8 passes through the outer sleeve 2, and the front end of the rod body 4 passes through the inner sleeve 8. The inner sleeve 8 and the outer sleeve 2 cooperate to form a first annular cavity 81, and the inner sleeve 8 and the rod body 4 cooperate to form a second annular cavity 82.

[0074] The front end surfaces of the inner sleeve 8 and the outer sleeve 2 are flush, the front end outer edges of the inner sleeve 8 and the outer sleeve 2 are chamfered, and the lens surface of the endoscope 3 cooperates with the front end surfaces of the inner sleeve 8 and the outer sleeve 2 to form a smooth round blunt structure. When the outer sleeve 2 punctures into the brain, the front end surface of the outer sleeve 2 inserted into the brain can effectively avoid scratching the brain tissue.

[0075] Furthermore, the second transition sleeve 7 is provided with an air suction channel 74, which is located outside the inner sleeve 8, and the first annular cavity is connected to the suction cavity through the air suction channel. In fact, the first annular cavity and the second annular cavity are formed by the inner sleeve 8 inserted into the annular cavity between the rod body 4 and the outer sleeve 2. The cross-sections of the first annular cavity and the second annular cavity are both smaller than the cross-section of the annular cavity. When suction is performed by the aspirator 6, blood and water can be sucked out without sucking hematoma or brain tissue. After blood and water are sucked out, the lens contacts tissue or hematoma, ensuring clear imaging of the endoscope.

[0076] The working process of the visual hematoma removal device described in Example 3 is as follows: before use, assemble the front sleeve 11, the second transition sleeve 7 and the endoscope base 13, and seal and fix the aspirator 6 with the end of the suction tube 5, so that the front end of the working part of the assembly has a smooth round blunt structure, insert the working part into the skull, and observe the insertion of brain tissue and hematoma through endoscopic imaging. In the process of the front end of the working part of the assembly reaching the hematoma position, if there is blood that affects the endoscopic imaging, the aspirator 6 is used to pump air into the suction cavity, and the blood is sucked into the aspirator 6 through the suction cavity.

[0077] After the front end of the working part of the assembly reaches the ideal position of the hematoma, the outer sleeve assembly 2 remains stationary, the second transition sleeve 7 and the inner sleeve 8 are removed and replaced with the first transition sleeve 12, the first transition sleeve 12 and the endoscope base 13 are assembled and inserted into the front sleeve 11, and tightened and sealed in turn, the endoscope base 13 is moved by hand and the hematoma is observed through the endoscope, the suction device 6 draws air into the suction cavity, and the hematoma is drawn into the suction device 6 through the annular cavity between the outer sleeve 2 and the rod body 4.

[0078] Parts not described in the present invention can be implemented by adopting or drawing on existing technologies.

[0079] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0080] Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0081] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A device for visually removing hematoma, comprising a support, an endoscope assembly and an outer sleeve, characterized in that: The support body has a suction cavity inside, and the rear end of the outer sleeve is fixedly connected to the front end of the support body; The endoscope assembly includes an endoscope and a rod body. The rod body can pass through the rear part of the support body and extend into the outer sleeve through the suction cavity. The endoscope lens is arranged at the front end of the rod body and extends to the front end of the outer sleeve. A suction tube is provided on the side wall of the support body, one end of the suction tube is connected to the outer sleeve through the suction cavity, and the other end is used for detachably connecting to the suction device; The support body is composed of a front sleeve, a first transition sleeve and an endoscope base which are arranged in sequence from front to back and can be detachably fixed and sealed together; The rear end of the rod body passes through the rear side of the endoscope base, and the outer wall of the rod body is fixedly and sealedly matched with the endoscope base; The rear end of the outer sleeve is plugged into the front end of the first chamber of the front sleeve, and the outer wall of the outer sleeve is fixedly and sealedly matched with the front sleeve; The front sleeve has a first chamber inside, the endoscope base has a second chamber inside, the first transition sleeve has a third chamber inside, and the first, second and third chambers cooperate to form the suction chamber; The second transition sleeve replaces the first transition sleeve, and cooperates with the endoscope base and the front sleeve in a detachable, fixed and sealed manner to form the support body. The fourth chamber cooperates with the first and second chambers to form the suction chamber. A second transition sleeve and an inner sleeve are provided, the interior of the second transition sleeve is a fourth chamber, the rear end of the inner sleeve is fixedly sealed and plugged with the front end of the second transition sleeve, and the interior thereof is communicated with the fourth chamber; The surface of the outer sleeve is provided with scale lines along the axial direction thereof.

2. A device for visually removing hematoma according to claim 1, characterized in that: After the second transition sleeve is assembled with the endoscope base and the front sleeve, the rod body, the inner sleeve and the outer sleeve are sequentially sleeved from the inside to the outside, the front end of the inner sleeve passes through the outer sleeve, and the front end of the rod body passes through the inner sleeve; The inner sleeve and the outer sleeve cooperate to form a first annular cavity, and the inner sleeve and the rod body cooperate to form a second annular cavity.

3. A visual hematoma removal device according to claim 2, characterized in that: The axial length of the second transition sleeve is smaller than the axial length of the first transition sleeve; The front end of the endoscope base has a first convex portion, and the rear end of the first transition sleeve has a first concave portion. The first convex portion of the endoscope base can be inserted into the first concave portion and matched with the rear end thread of the first transition sleeve. The front end of the first transition sleeve has a second convex portion, the rear end of the front sleeve has a second concave portion, and the second convex portion of the first transition sleeve can be inserted into the second concave portion and matched with the rear end thread of the front sleeve; The front end of the second transition sleeve has a third convex portion, and the rear end thereof has a third concave portion; When the second transition sleeve is assembled with the endoscope base and the front sleeve, the first clamping protrusion of the endoscope base can be inserted into the third recessed portion and cooperate with the rear end thread of the second transition sleeve, and the third clamping protrusion of the second transition sleeve can be inserted into the second recessed portion and cooperate with the rear end thread of the front sleeve.

4. The device for visually removing hematoma according to claim 3, characterized in that: Two first guide slide blocks are symmetrically arranged on the side wall of the first convex portion, a first spiral groove which is gap-matched with the first guide slide block is opened on the inner wall of the first concave portion, and a first sealing ring is arranged on the front side of the first spiral groove; Two second guide slide blocks are symmetrically arranged on the side wall of the second convex portion, a second spiral groove matching with the second guide slide block is opened on the inner wall of the second concave portion, and a second sealing ring is arranged on the front side of the second spiral groove; Two third guide slide blocks matched with the second spiral groove are symmetrically arranged on the side wall of the third clamping protrusion, a third spiral groove matched with the first guide slide block is opened on the inner wall of the third recessed portion, and a third sealing ring is arranged on the front side of the third spiral groove.

5. The device for visually removing hematoma according to claim 1, characterized in that: The rod body is a rigid straight rod with a circular cross section. The endoscope lens is fixed to the front end of the rod body. The rod body is coaxially arranged with the endoscope base, and its outer wall is fixedly sealed with the endoscope base.

6. The device for visually removing hematoma according to claim 2, characterized in that: The outer sleeve is a metal straight round tube of equal cross-section and is coaxially arranged with the inner sleeve and the rod body; The front end surfaces of the inner sleeve and the outer sleeve are flush, the front end outer edges of the inner sleeve and the outer sleeve are chamfered, and the lens surface of the endoscope cooperates with the front end surfaces of the inner sleeve and the outer sleeve to form a smooth rounded structure.

7. The device for visually removing hematoma according to claim 3, characterized in that: The second transition sleeve is provided with an air suction channel, the air suction channel is located outside the inner sleeve, and the first annular cavity is communicated with the suction cavity through the air suction channel.

8. The device for visually removing hematoma according to claim 3, characterized in that: The outer walls of the front sleeve, the first transition sleeve, the second transition sleeve and the endoscope base are all provided with indicating marks along their axial directions.

9. The device for visually removing hematoma according to claim 1, characterized in that: The outer wall of the support body is provided with a mounting hole, and one end of the straw is inserted into the mounting hole and fixedly and sealedly connected with the inner wall thereof.

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