Cerebral hemorrhage mirror locking device and cerebral hemorrhage mirror

Abstract

The utility model discloses a cerebral hemorrhage endoscope locking device and a cerebral hemorrhage endoscope, and belongs to the technical field of medical instruments. The locking device is used for the cerebral hemorrhage mirror, the cerebral hemorrhage mirror comprises a blood suction cannula insertion device, the blood suction cannula insertion device comprises a channel for a blood suction tube to be inserted, the locking device comprises a matching part, and the matching part is fixedly connected to the blood suction cannula insertion device; and the locking piece is arranged on the matching piece in a sleeving manner. According to the scheme, the locking device can be matched with the blood suction cannula inserted into the blood suction cannula insertion channel in the operation process, and movement and locking of the blood suction cannula are achieved; according to the cerebral hemorrhage endoscope, the blood suction assembly can be fixedly connected with the endoscope body through the locking device, so that the operation process can be operated by one operator, and the problem that two operators operate and cooperate asynchronously is solved.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, and more specifically to a locking device for a cerebral hemorrhage endoscope and a cerebral hemorrhage endoscope. Background Art

[0002] Hypertensive intracerebral hemorrhage (HICH) is a common and frequently occurring disease in neurosurgery, with high disability and mortality rates. HICH accounts for 43.0% to 51.0% of cerebrovascular diseases, mainly in people over 55 years old, but has a trend of younger age in recent years. HICH progresses rapidly, and if the hematoma volume exceeds 20.0 mL, the disability rate can reach 30.0%. The surgical treatment of HICH, namely the removal of intracerebral hematoma, can increase the chance of survival, thereby improving the prognosis and the quality of life of patients.

[0003] At present, there are three main surgical treatments for cerebral hemorrhage: the first is craniotomy to remove the intracranial hematoma. This operation takes a long time, causes a lot of blood loss and trauma, and causes severe postoperative edema, which affects the patient's prognosis. The second is small bone window craniotomy to remove the hematoma. This operation takes a short time, has a small incision, and causes little brain damage. It can completely remove the hematoma under direct vision, find the responsible blood vessels, and stop bleeding in time, fully decompress, and is easy to operate. The third is stereotactic-assisted intracranial hematoma cavity drilling and drainage. This minimally invasive surgery uses a punching method, which causes less trauma, but it cannot fully decompress the blood vessels in time, and cannot stop bleeding reliably under direct vision.

[0004] Among them, small bone window craniotomy hematoma removal can be completed with the assistance of a microscope or neuroendoscope, but due to the small cortical incision range under the small bone window, the hematoma cannot be clearly displayed through the microscope. If difficult-to-stop bleeding occurs during the operation, the cortical wound must be enlarged to ensure a satisfactory surgical field. The use of a neuroendoscope can provide high-intensity lighting, close observation, and clear identification of the hematoma and adjacent tissues for accurate treatment. It can also visually observe the range of the hematoma to ensure reliable hemostasis.

[0005] A Chinese patent document with application number CN217987695U discloses an endoscope sleeve device with a suction function. The method of using the sleeve device is as follows: insert the front end of the sleeve carrying a core rod and a suction tube into the hematoma cavity, and then pull the core rod out of the sleeve from the rear end through a handle rod, forming an endoscope channel inside the sleeve, and an endoscope and bipolar electrocoagulation can be inserted into the endoscope channel to perform hematoma removal and hemostasis operations. When stopping bleeding, the suction tube is pushed to the front end until the extended section extends out of the end of the sleeve, and the suction hole is used in combination with a negative pressure suction device to suck blood and water, so as to provide a surgical field for bipolar electrocoagulation hemostasis.

[0006] In existing neuroendoscopic hematoma removal surgery, a suitable cannula is usually placed in the hematoma cavity, and the hematoma is attracted and hemostasis is performed in the internal space of the cannula. During the operation, the endoscope and the suction device are placed into the hematoma cavity through the cannula to extract the hematoma. If there is clear active bleeding, a bipolar coagulation device needs to be inserted for electrocoagulation hemostasis. When stopping active bleeding, the assistant can hold the endoscope to cooperate, and the operator can perform "two-handed" hemostasis under direct vision of the endoscope. The assistant holds the endoscope to show the active bleeding blood vessel stump to the operator, and the operator holds the suction device in the left hand and the bipolar coagulation device in the right hand to perform "two-handed" hemostasis.

[0007] During the operation, there are disadvantages of the three instruments, the aspirator, the endoscope, and the bipolar electrocoagulation, interfering with each other in the working channel, as well as the problem of the two people's operation being out of sync.

[0008] In the related art, for example, Chinese patent CN217987695U provides an endoscope sleeve device with a suction function, including a sleeve, an inner wall of the sleeve is provided with an arc plate along the axial direction, a sandwich channel is formed between the arc plate and the inner wall of the sleeve, a suction tube is slidably connected in the sandwich channel, the front end of the suction tube is closed and the front end of the suction tube is flush with the end face of the sleeve, the front end of the suction tube is provided with an extension section, the side wall of the extension section of the suction tube is provided with a plurality of suction holes, the rear end of the suction tube is connected to a negative pressure suction device, and a core rod is slidably connected inside the sleeve. The utility model uses the suction holes on the side wall of the front end of the suction tube to absorb blood and water in the hematoma cavity, which is convenient for providing a surgical field for bipolar electrocoagulation hemostasis, and is convenient for endoscopes and bipolar electrocoagulation to perform hematoma removal and hemostasis operations, thereby improving the efficiency of the operation. However, there is a disadvantage that a plurality of instruments such as an aspirator, an endoscope, and bipolar electrocoagulation interfere with each other in the working channel.

[0009] From the above, it can be seen that the relevant technology does not provide any technical inspiration on how to avoid the problem of mutual interference between multiple instruments in the working channel during endoscopic hematoma removal surgery. Summary of the invention

[0010] 1. Technical issues to be solved

[0011] In view of the problem in the prior art of how to avoid mutual interference between multiple instruments in a working channel during endoscopic hematoma removal surgery, the utility model provides a cerebral hemorrhage endoscope locking device and a cerebral hemorrhage endoscope, which can realize the fixed connection between the blood suction cannula and the endoscope body, and the adjustable function of the extension distance of the blood suction cannula, thereby avoiding the problem of the lens being blocked by blood and mucus; during the operation, the blood suction cannula cooperates with the blood suction cannula inserted into the blood suction cannula insertion channel to realize the movement and locking of the blood suction cannula.

[0012] 2. Technical solution

[0013] The purpose of the utility model is achieved through the following technical solutions.

[0014] The utility model discloses a locking device, which is used for a cerebral hemorrhage mirror. The cerebral hemorrhage mirror comprises a blood suction cannula insertion device, which comprises a channel for inserting a blood suction tube. The locking device comprises a matching piece, which is fixedly connected to the blood suction cannula insertion device so as to fix the blood suction cannula; and a locking piece, which is sleeved on the matching piece so as to fix the blood suction cannula.

[0015] Further, one end of the fitting is a fixing part, and the other end is a clamping part; the clamping part includes a first clamping part and a second clamping part, the first clamping part and the second clamping part are arranged opposite to each other and form a gap, and one end of the first clamping part and the second clamping part are connected to the fixing part;

[0016] Furthermore, the matching piece includes a first through hole, and the first through hole is communicated with the channel.

[0017] Furthermore, the locking member has a second through hole, which is configured to be elliptical and adapted to the elliptical cylinder of the matching member, so that when the locking member is rotated to the locking position, the major axis of the second through hole is coaxial with the minor axis of the elliptical cylinder of the matching member.

[0018] Furthermore, the locking member is provided with a protrusion extending radially outward.

[0019] Furthermore, an anti-falling mechanism is provided at the mating position between the mating piece and the locking piece to prevent the locking piece from falling off.

[0020] Furthermore, the anti-drop mechanism comprises a first step and a second step, wherein the first step is arranged on the matching piece and protrudes from the outer surface of the elliptical cylinder portion of the matching piece structure;

[0021] The second step is disposed on the locking member and protrudes from the inner surface of the second through hole portion;

[0022] When the first step abuts against the second step, the locking member is prevented from falling off.

[0023] Furthermore, a limiting mechanism is provided at the matching position between the matching member and the locking member to limit the locking member when the locking member rotates to the locking position.

[0024] Furthermore, the limiting mechanism includes a limiting block and a limiting groove, one of the matching piece and the locking piece is provided with a limiting block, and the other is provided with a limiting groove; the limiting block and the limiting groove are mutually embedded so that the limiting groove limits the locking piece.

[0025] A cerebral hemorrhage endoscope comprises the locking device described above.

[0026] 3. Beneficial effects

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] (1) The locking device of the present invention can cooperate with the blood suction cannula inserted into the blood suction cannula insertion channel during surgery to achieve the movement and locking of the blood suction cannula;

[0029] (2) The intracerebral hemorrhage endoscope of this scheme can realize the fixed connection between the blood suction component and the endoscope body through the locking device, so that the operation process can be performed by one operator, avoiding the problem of asynchronous operation between two operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0031] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0032] In the attached picture:

[0033] Figure 1 This is a schematic diagram of the overall structure of a cerebral hemorrhage endoscope according to one embodiment of the present application;

[0034] Figure 2 This is a schematic diagram of the overall structure of a locking device according to an embodiment of the present application;

[0035] Figure 3 This is a schematic diagram of the overall structure of a locking device according to an embodiment of the present application;

[0036] Figure 4 This is a schematic diagram of the overall structure of the first step of an anti-falling mechanism of a locking device according to an embodiment of the present application;

[0037] Figure 5 This is a schematic diagram of the overall structure of the second step of the anti-falling mechanism of a locking device according to one embodiment of the present application;

[0038] Figure 6 This is a schematic diagram of the overall structure of a locking device according to an embodiment of the present application;

[0039] Figure 7 This is a schematic diagram of the overall structure of a locking device according to an embodiment of the present application;

[0040] Figure 8 The present invention is a schematic diagram of the overall structure of a locking member of a locking device according to an embodiment of the present application.

[0041] Description of the numbers in the figure:

[0042] 100, matching piece; 110, first through hole; 120, clamping portion; 130, first step; 140, limiting groove;

[0043] 200, locking member; 210, second through hole; 220, protrusion; 230, second step; 240, limiting block. DETAILED DESCRIPTION

[0044] The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the utility model without substantial change of the technical content.

[0046] like Figures 1 to 8 As shown, a locking device of this embodiment is used for a cerebral hemorrhage endoscope. The cerebral hemorrhage endoscope includes a blood suction cannula insertion device. The blood suction cannula insertion device includes a channel for inserting a blood suction tube. The channel described here is a blood suction cannula channel.

[0047] Specifically, the intracerebral hemorrhage endoscope includes an insertion part, an operating part and a connecting part. The insertion part is a rigid structure and cannot be bent. The connecting part is connected to the bottom end of the operating handle of the operating part through a cable.

[0048] The front end of the insertion part is a head end seat, which has multiple through holes. Three of the through holes are connected to the camera channel and two sets of light source channels respectively, and are used to install the camera and two sets of light sources. The light source is preferably optical fiber or LED lighting; the other three through holes are used to connect the instrument channel, the blood suction cannula channel and the flushing / overflow channel respectively.

[0049] The rear of the head end seat can be connected to the main sleeve of the insertion part, and the outer sleeve of the insertion part wraps the rear end of the head end seat and the main sleeve of the insertion part. The outer sleeve of the insertion part plays a role in stabilizing the connection and making the insertion part flat and without edges to avoid damage to brain tissue.

[0050] The operating part is composed of a channel opening and an operating handle, and the operating handle includes a handle lower shell and a handle top cover. The channel opening includes an instrument insertion opening, a blood suction cannula channel opening, and a flushing / overflow channel opening. The instrument insertion opening is arranged at the upper end, which is convenient for inserting instruments such as an electrocoagulator.

[0051] The flushing / overflow channel opening and the blood suction cannula channel opening are arranged below the instrument insertion port, and the port of the flushing / overflow channel opening is a Luer connector. The instrument insertion port is coaxially arranged with the instrument channel to ensure that the instrument channel is straight and not bent.

[0052] Since the operator needs to control the length of the electrocoagulator extending from the end of the cerebral hemorrhage lens at any time, the electrocoagulator needs to be able to move freely in the channel. In this embodiment, the instrument channel is connected to the instrument insertion port, the electrocoagulator is slidably placed in the instrument channel and the head end of the electrocoagulator extends out of the head end seat.

[0053] In order to allow the operator to simultaneously complete the suction work while holding the endoscope with one hand, the blood suction cannula and the endoscope need to be fixedly connected, and the blood suction cannula channel is connected to the blood suction cannula channel opening.

[0054] During use, the operator inserts the blood suction cannula into the intracerebral hemorrhage endoscope and, under the guidance of the image of the intracerebral hemorrhage endoscope, extends the tip of the blood suction cannula to an appropriate distance beyond the lens end of the intracerebral hemorrhage endoscope and then locks the blood suction cannula by means of the locking device. During the operation, the operator can adjust the length of the blood suction cannula extending beyond the lens end of the intracerebral hemorrhage end at any time by means of the locking device.

[0055] The blood suction function structure of the cerebral hemorrhage endoscope of this embodiment is different from that of the existing cerebral hemorrhage endoscope, which only adds a blood suction channel and uses a negative pressure device at the rear end of the channel. The blood suction channel of the endoscope is used to suck blood, that is, the end face of the blood suction channel is consistent with the end face of the lens. The disadvantage of this solution is that when sucking blood, the end of the cerebral hemorrhage lens needs to be close to or partially extended into the hematoma. The lens is easily blocked by coagulated blood or mucus and the surgical field cannot be seen clearly. Repeated flushing is required, which increases the difficulty of the operation.

[0056] In this embodiment, the blood-sucking cannula channel cooperates with the locking device to realize the fixed connection between the blood-sucking cannula and the mirror body, and the extension distance can be manually adjusted, thereby avoiding the problem of the lens being blocked by blood and mucus. In order to facilitate the removal of lateral hematoma, the blood-sucking cannula adopts a flexible structure that can be bent at a certain angle, that is, the blood-sucking cannula can be manually bent to shape, and the bending angle can also be adjusted by structures such as snake bones.

[0057] In a specific embodiment, the locking device includes a matching piece 100, and the matching piece 100 is fixedly connected to the blood suction cannula insertion device;

[0058] Specifically, the fitting 100 is disposed at one end of the blood-sucking cannula insertion device and the fitting 100 and the blood-sucking cannula insertion device cannot move relative to each other, so that the blood-sucking cannula and the blood-sucking cannula insertion device are relatively stationary when providing clamping force to the blood-sucking cannula inserted into the blood-sucking cannula channel.

[0059] More specifically, the locking device further comprises a locking member 200, which is sleeved on the outside of the fitting member 100 so that when the locking member 200 is rotated to the locking position, the fitting member 100 can generate a clamping force to clamp the blood-sucking cannula.

[0060] The fitting 100 includes a first through hole 110, which is connected to the blood suction cannula channel. One end of the fitting 100 is a fixed part, and the other end is a clamping part 120; the clamping part 120 includes a first clamping part and a second clamping part, which are arranged opposite to each other and form a gap, one end of the first clamping part and the second clamping part is connected to the fixed part, and the other end of the first clamping part and the second clamping part is suspended, so that when the locking member 200 is rotated to the locking position, the first clamping part and the second clamping part are close to each other to generate a clamping force. The fitting 100 includes a first through hole 110, which is connected to the channel.

[0061] The locking member 200 has a second through hole 210, which is configured to be elliptical and adapted to the elliptical cylinder of the matching member 100, so that when the locking member 200 is rotated to the locking position, the major axis of the second through hole 210 and the minor axis of the elliptical cylinder of the matching member 100 are located on the same straight line.

[0062] Therefore, the shape and volume of the cavity formed by the second through hole 210 are roughly the same as the shape and volume of the elliptical cylinder of the mating part 100, the major axis of the elliptical shape formed by the second through hole 210 and the major axis of the elliptical shape formed by the elliptical cylinder of the mating part 100 are located on the same straight line, and the minor axis of the elliptical shape formed by the second through hole 210 and the minor axis of the elliptical shape formed by the elliptical cylinder of the mating part 100 are located on the same straight line.

[0063] When it is necessary to lock the blood-sucking cannula, the locking piece 200 is rotated 90°. At this time, the major axis of the elliptical shape formed by the second through hole 210 and the minor axis of the elliptical shape formed by the elliptical cylinder of the matching piece 100 are located on the same straight line. Since the matching piece 100 is provided with a clamping portion 120 along the minor axis direction of the elliptical cylinder, the clamping portion 120 is closed to press the blood-sucking cannula and complete the locking. When it is necessary to unlock the blood-sucking cannula, the locking piece 200 is rotated in the opposite direction to complete the unlocking.

[0064] In a specific embodiment, the outer contour of the locking member 200 is configured to be cylindrical. Setting the outer contour of the locking member 200 to be cylindrical can facilitate the operator to rotate the locking member 200 .

[0065] Specifically, the locking member 200 is provided with a protrusion 220 extending radially outwardly thereof, and the projection of the protrusion 220 is a triangle, so that the rotation position of the locking member 200 can be marked, and the operator can rotate the locking member 200 more conveniently and labor-savingly.

[0066] In a specific embodiment, the outer contour of the locking member 200 may also be configured as an elliptical cylinder, so that the operator can easily rotate the locking member 200 .

[0067] In a specific embodiment, an anti-drop mechanism is provided at the mating position of the mating piece 100 and the locking piece 200, and the anti-drop mechanism includes a first step 130 and a second step 230. The first step 130 is provided on the mating piece 100 and protrudes from the outer surface of the elliptical cylinder portion of the mating piece 100; the second step 230 is provided on the locking piece 200 and protrudes from the inner surface of the second through hole 210. The first step 130 abuts against the second step 230, thereby preventing the mating piece 100 and the locking piece 200 from relative movement along the axial direction, so as to prevent the locking piece 200 from falling off.

[0068] In a specific embodiment, a limiting mechanism is provided at the matching position of the matching member 100 and the locking member 200. The limiting mechanism includes a limiting block 240 and a limiting groove 140, one of the matching member 100 and the locking member 200 is provided with a limiting block 240, and the other is provided with a limiting groove 140, and the limiting block 240 and the limiting groove 140 are mutually embedded.

[0069] Specifically, the limit block 240 is provided on the locking member 200, and the limit groove 140 is provided on the matching member 100. During the operation, if the locking member 200 rotates excessively, parts and instruments may be damaged. By increasing the rotation path of the locking member 200, the rotation range of the locking member 200 is limited, which can ensure that the locking member 200 rotates to lock the blood suction cannula, and can prevent the locking member 200 from rotating excessively and damaging parts and instruments.

[0070] The above schematically describes the invention and its implementation methods, which is not restrictive. Without departing from the spirit or basic features of the invention, the invention can be implemented in other specific forms. What is shown in the accompanying drawings is only one of the implementation methods of the invention. The actual structure is not limited to this, and any figure mark in the claims should not limit the claims involved. Therefore, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the invention, a structural method and an embodiment similar to the technical solution are designed without creativity, which should all fall within the scope of protection of this patent. In addition, the word "including" does not exclude other elements or steps, and the word "one" before the element does not exclude the inclusion of "multiple" elements. The multiple elements stated in the product claim can also be implemented by one element through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any specific order.

Claims

1. A locking device for a cerebral hemorrhage endoscope, wherein the cerebral hemorrhage endoscope comprises a blood suction cannula insertion device, wherein the blood suction cannula insertion device comprises a channel for inserting a blood suction cannula, Features: The locking device comprises: A matching piece, the matching piece is fixedly connected to the blood-sucking cannula insertion device to fix the blood-sucking cannula; A locking piece is sleeved on the matching piece so that the locking piece fixes the blood-sucking cannula.

2. The locking device according to claim 1, characterized in that: One end of the fitting is a fixing part, and the other end is a clamping part; the clamping part includes a first clamping part and a second clamping part, the first clamping part and the second clamping part are arranged opposite to each other and form a gap, and one end of the first clamping part and the second clamping part is connected to the fixing part; The matching piece includes a first through hole, and the first through hole is communicated with the channel.

3. The locking device according to claim 2, characterized in that: The locking member has a second through hole, which is configured to be elliptical and adapted to the elliptical cylinder of the matching member, so that when the locking member is rotated to the locking position, the major axis of the second through hole is coaxial with the minor axis of the elliptical cylinder of the matching member.

4. The locking device according to claim 3, characterized in that: The locking member is provided with a projection extending outwardly in the radial direction thereof.

5. The locking device according to claim 3, characterized in that: An anti-falling mechanism is provided at the matching position between the matching piece and the locking piece to prevent the locking piece from falling off.

6. The locking device according to claim 5, characterized in that: The anti-falling mechanism includes a first step and a second step, wherein the first step is arranged on the mating piece and protrudes from the outer surface of the elliptical cylindrical part of the mating piece structure; the second step is arranged on the locking piece and protrudes from the inner surface of the second through hole part; the first step abuts against the second step to prevent the locking piece from falling off.

7. The locking device according to claim 6, characterized in that: A limiting mechanism is provided at the matching position between the matching member and the locking member, so as to limit the locking member during the process of the locking member rotating to the locking position.

8. The locking device according to claim 7, characterized in that: The limiting mechanism comprises a limiting block and a limiting groove. One of the matching member and the locking member is provided with a limiting block, and the other is provided with a limiting groove. The limiting block and the limiting groove are mutually engaged so that the limiting groove limits the locking member.

9. A cerebral hemorrhage endoscope, characterized in that: Comprising a locking device as described in any one of claims 1-8.

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