Disposable medical dilator

Abstract

The invention relates to the technical field of surgical equipment, in particular to a disposable medical dilator which comprises a dilator body and a power supply cable, the dilator body is used for hooking a human body part to dilate a surgical operation window so as to completely display a surgical operation part of a human body, and a hooking part for hooking the human body part is arranged at the head end of the dilator body. A flue is arranged in the hooking part, a light-emitting mechanism used for providing illumination is embedded in the expander body, and the tail end of the expander body is detachably installed on a power supply part of a power supply cable. A series of work such as hooking of a human body part, expansion of an operative incision, collection and exhaust of smoke and light source irradiation of the human body operative part can be achieved, operation is convenient and rapid, the operation view of a doctor during an operation can be effectively expanded, and the operation efficiency is improved. Meanwhile, the tail end of the dilator body is detachably installed on the power supply part of the power supply cable, rapid replacement of the dilator body can be achieved, disinfection is convenient, and economic benefits are improved.

Description

Technical Field

[0001] The invention relates to the technical field of surgical equipment, in particular to a disposable medical dilator. Background Art

[0002] When performing surgery on human tissue, the surgical incision is usually pulled open with the help of devices such as dilators or retractors, so as to help the doctor obtain a clear field of vision and facilitate the doctor to perform surgical operations on the tissue in the incision. For example, the dilator for orthopedic surgery disclosed in a Chinese patent (Announcement No.: CN112932570B) includes two rods hinged in an X-shape, the tail ends of the two rods are respectively provided with grip rings, the front ends of the two rods are respectively provided with dilating plates, the two dilating plates are both arc-shaped plates, the front ends of the two rods are plate-shaped arcs and the arched parts in the middle are convex, and the outer side walls in the middle of the plate-shaped bodies at the front ends of the two rods are respectively provided with convex columns, the middle parts of the two dilating plates are respectively provided with through holes, the two dilating plates are respectively sleeved on the convex columns on the corresponding sides through the through holes, and the The expansion plate can rotate on the convex column, and the expansion plate is connected to the plate-like body at the front end of the rod body through a magnet. The expansion of the surgical incision is achieved by outward expansion, and it has a holding function. However, with the improvement of surgical technology, the surgical incision gradually becomes smaller. Continuing to use this type of expander is not only not suitable for expansion of smaller surgical incisions, but also because it occupies the main visual field position of the surgical incision, it is not convenient for doctors to perform delicate operations. At the same time, as the surgical incision becomes smaller, the illumination effect of the light source in the incision is also poor. When using a laser knife for surgery, the smoke and dust generated will not only contaminate the wound, but also cause the visual environment in the incision to further deteriorate. Therefore, additional smoke exhaust equipment needs to be added and smoke exhaust work needs to be performed by dedicated personnel, resulting in more interference factors during the operation and a lower safety factor. Summary of the invention

[0003] The technical problem to be solved by the present invention is as follows: the existing expander cannot meet the expansion demand of a smaller surgical incision, the light source irradiation effect is poor, and when a laser knife is used for surgery, the smoke generated requires additional smoke exhaust equipment to be installed and performed by a dedicated person, resulting in an increase in interference factors during the operation and a low safety factor.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a disposable medical dilator, comprising a dilator body and a power supply cable for hooking a human body part to expand a surgical operation window so as to fully display the human body surgical operation part, the head end of the dilator body is provided with a hooking part for hooking a human body part, a flue is provided inside the hooking part, the entrance of the flue is exposed to the outside from one end of the hooking part close to the human body surgical operation part, the outlet of the flue is provided with a joint connected to a corresponding smoking device, a light-emitting mechanism for providing lighting is embedded inside the dilator body, a scattering part for evenly projecting light onto the human body surgical operation part is provided at the head end of the dilator body, the tail end of the dilator body is detachably mounted on the power supply part of the power supply cable, and the wiring part of the light-emitting mechanism is electrically connected to the power supply end of the power supply cable.

[0005] When the present invention is working, it can realize a series of tasks such as hooking human body parts, expanding surgical incisions, collecting and exhausting smoke, and irradiating the surgical parts of the human body with light sources. The operation is convenient and quick, and can effectively expand the doctor's operating field of vision during surgery. At the same time, the tail end of the expander body can be detachably installed on the power supply part of the power supply cable, which can realize the rapid replacement of the expander body, facilitate disinfection and improve economic benefits.

[0006] Preferably, one end of the hook portion is connected to the head end of the expander body, and the other end of the hook portion is bent toward the hooked human body part after being extended toward the surgical operation part of the human body.

[0007] Preferably, the hook portion is provided with a projection portion corresponding to the entrance of the flue at one end close to the surgical operation site of the human body, the projection portion is optically connected with the light-emitting portion of the light-emitting mechanism, and the projection portion is aligned with the entrance of the flue to project light indicating the position of the flue entrance onto the surgical operation site of the human body.

[0008] When the present invention is working, a projection unit is used to project light indicating the position of the flue entrance onto the surgical operation site of the human body, which can provide a reference for the doctor, facilitate the alignment of the flue entrance with the site where smoke is generated, improve the efficiency of smoke collection, avoid the contamination of the wound due to smoke overflow, and thus improve the safety factor.

[0009] Preferably, the middle part and the head end of the expander body are configured to be integrally injection molded by light-guiding material, and the end of the scattering part away from the hooking part is provided with a reflecting surface for reflecting light while preventing the light from irradiating outward, and the end of the scattering part close to the hooking part is provided with a scattering surface for evenly scattering light.

[0010] When the present invention is working, the expander body is made by integral injection molding of light-guiding material, and a reflective surface is arranged to reflect light to prevent the light from irradiating outward to adjust the light path, which can accurately guide the light into the incision. While making full use of the light emitted by the light-emitting mechanism, it can also prevent the light from irradiating the doctor's eyes, thereby improving the doctor's user experience and being suitable for use in delicate surgical operations.

[0011] Preferably, two ends of the scattering portion are provided with scattering protrusions protruding outwardly for expanding the light projection area.

[0012] Preferably, a sealing component for preventing smoke from flowing back is provided in the flue, and the sealing component is configured as a one-way valve made of a flexible material.

[0013] Preferably, the light-emitting portion of the light-emitting mechanism is arranged in the middle of the expander body, and a soft light indicating portion is provided between the light-emitting portion of the light-emitting mechanism and the head end of the expander body, and the soft light indicating portion is extended along the connecting light path between the light-emitting portion of the light-emitting mechanism and the head end of the expander body.

[0014] Preferably, the light-emitting mechanism includes a lamp body and two connecting springs, the lamp body is arranged in the middle of the expander body, the two connecting springs are respectively arranged at both ends of the tail end of the expander body, and the lamp body is electrically connected to the power supply cable through the two connecting springs.

[0015] Preferably, the tail end of the expander body is provided with a connecting portion, the power supply portion of the power supply cable is provided with a groove for the connecting portion to be placed, and the wiring portions electrically connected to the light-emitting mechanism are arranged at intervals in the groove. Preferably, a limiting hole is provided in the middle of the connecting part, the axial direction of the limiting hole is perpendicular to the axial direction of the expander body, a limiting protrusion corresponding to the limiting hole is provided in the groove, and the limiting protrusion is inserted into the limiting hole when the connecting part is inserted.

[0016] The beneficial technical effects of the present invention include: 1. The present invention can realize a series of tasks such as hooking of human body parts, dilation of surgical incisions, collection and exhaust of smoke, and light source irradiation of human body surgical parts. It is easy and quick to operate, and can effectively expand the doctor's operating field of vision during surgery. At the same time, the tail end of the dilator body can be detachably installed on the power supply part of the power supply cable, which can realize the rapid replacement of the dilator body, facilitate disinfection and improve economic benefits.

[0017] 2. The present invention uses a projection part to project light indicating the position of the flue entrance onto the surgical operation site of the human body, which can provide a reference for the doctor, facilitate the alignment of the flue entrance with the location where the smoke is generated, improve the efficiency of smoke collection, and avoid the contamination of the wound due to smoke overflow, thereby improving the safety factor.

[0018] 3. The present invention manufactures the expander body by integral injection molding of light-guiding materials, and arranges a reflective surface for reflecting light to prevent the light from irradiating outward to adjust the light path, which can accurately guide the light into the incision. While making full use of the light emitted by the light-emitting mechanism, it can also prevent the light from irradiating the doctor's eyes, thereby improving the doctor's user experience and being suitable for use in delicate surgical operations.

[0019] Other features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 Schematic diagram of the structure of a disposable medical dilator Figure 1 ; Figure 2 for Figure 1 A partial enlarged view of the middle A; Figure 3 for Figure 1 A partial enlarged view of point B in the middle; Figure 4 Schematic diagram of the structure of a disposable medical dilator Figure 2 ; Figure 5 for Figure 4 A partial enlarged view of point C in the middle. DETAILED DESCRIPTION

[0021] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0022] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operate in a specific direction. Therefore, it should not be understood as a limitation of the present invention. Embodiment 1:

[0023] See also Figure 1This embodiment discloses a disposable medical dilator, including a dilator body 1 and a power supply cable 2 for hooking a human body part to dilate a surgical operation window to fully display the human body surgical operation part, which is described in detail below with reference to the accompanying drawings.

[0024] See also Figures 1 to 5 In this embodiment, a hook portion 11 for hooking a human body part is provided at the head end of the dilator body 1, a flue 12 is provided inside the hook portion 11, an entrance of the flue 12 is exposed to the outside from an end of the hook portion 11 close to the surgical operation part of the human body, an outlet of the flue 12 is provided with a connector 121 connected to a corresponding smoking device, a light-emitting mechanism 13 for providing lighting is embedded inside the dilator body 1, a scattering portion 14 for uniformly projecting light on the surgical operation part of the human body is provided at the head end of the dilator body 1, the tail end of the dilator body 1 is detachably mounted on the power supply part of the power supply cable 2, and the wiring part of the light-emitting mechanism 13 is electrically connected to the power supply end of the power supply cable 2.

[0025] When the present embodiment is in operation, it can realize a series of tasks such as hooking of human body parts, dilation of surgical incisions, collection and exhaustion of smoke, and light source irradiation of human body surgical parts. The operation is convenient and quick, and can effectively expand the doctor's operating field of vision during surgery. At the same time, the tail end of the dilator body 1 can be detachably installed on the power supply part of the power supply cable 2, which can realize the rapid replacement of the dilator body 1, facilitate disinfection and improve economic benefits.

[0026] During the specific implementation, one end of the hooking portion 11 is connected to the head end of the expander body 1, and the other end of the hooking portion 11 is extended in the direction close to the surgical operation site of the human body and then bent in the direction close to the hooked human body part. It can maintain a good contact effect when hooking the human body part, thereby avoiding the risk of secondary injury to the human body when pulling the human body part.

[0027] Preferably, the end of the hook portion 11 close to the surgical operation site of the human body is provided with a projection portion 15 corresponding to the entrance of the flue 12, the projection portion 15 is optically conductive with the light-emitting site of the light-emitting mechanism 13, the projection portion 15 is aligned with the entrance of the flue 12 to project light indicating the entrance position of the flue 12 onto the surgical operation site of the human body, preferably, a sealing component for preventing smoke backflow is provided in the flue 12, and the sealing component is configured as a one-way valve made of flexible material.

[0028] When this embodiment is working, the projection unit 15 is used to project light indicating the entrance position of the flue 12 onto the surgical operation site of the human body, which can provide a reference for the doctor and facilitate the alignment of the entrance of the flue 12 with the site where the smoke is generated, thereby improving the efficiency of smoke collection and avoiding the contamination of the wound due to smoke overflow, thereby improving the safety factor.

[0029] In this embodiment, the middle part and the head end of the expander body 1 are configured to be integrally injection molded by a light-guiding material, and the end of the scattering portion 14 away from the hook portion 11 is provided with a reflecting surface 141 for reflecting light while preventing the light from irradiating outward, and the end of the scattering portion 14 close to the hook portion 11 is provided with a scattering surface 142 for uniformly scattering light.

[0030] As a further improvement of the present embodiment, the light-emitting portion of the light-emitting mechanism 13 is arranged in the middle part of the dilator body 1, and a soft light indicating portion 16 is provided between the light-emitting portion of the light-emitting mechanism 13 and the head end of the dilator body 1. The soft light indicating portion 16 is extended along the connecting optical path between the light-emitting portion of the light-emitting mechanism 13 and the head end of the dilator body 1, and can clearly indicate the extension direction of the dilator body 1. During long-term surgery, it can reduce the difficulty for the doctor to find the dilator body 1, facilitate the doctor's use, and provide a good user experience.

[0031] When this embodiment is working, the expander body 1 is made by integral injection molding of light-guiding material, and a reflective surface 141 is arranged to reflect light to prevent the light from irradiating outward to adjust the light path, so that the light can be accurately introduced into the incision. While making full use of the light emitted by the light-emitting mechanism 13, it can also prevent the light from irradiating the doctor's eyes, thereby improving the doctor's user experience and being suitable for use in delicate surgical operations.

[0032] As a further improvement of this embodiment, in order to further improve the light scattering effect of the scattering portion 14, it is necessary to adjust the sizes of various parts of the scattering portion 14 in a targeted manner, and the angle between the reflecting surface 141 and the light path in the soft light indicating portion 16 needs to be optimized and set according to the area of ​​the surgical operation part of the human body. In actual work, the angle between the reflecting surface 141 and the light path in the soft light indicating portion 16 is calculated using the following formula: ; Wherein: A is the area of ​​the surgical operation part of the human body, that is, the area that needs to be irradiated by the light source. When working, it needs to be selected according to the type of surgery. L is the distance from the scattering surface 142 to the surgical operation part of the human body. is the angle between the reflecting surface 141 and the light path in the soft light indicating portion 16, R is the curvature radius of the scattering surface 142, is the curvature correction formula related to the material refractive index n, which can be set as follows during specific implementation: , which enables optimal control of the light beam.

[0033] Preferably, scattering protrusions 143 are protruded outwardly from both ends of the scattering portion 14 to expand the light projection area, and the area of ​​the scattering surface 142 after the scattering protrusions 143 are added is 1.1 to 1.5 times that before the addition. Embodiment 2:

[0034] See also Figure 3 This embodiment provides a disposable medical dilator. The same points as those in the first embodiment will not be described in detail, and the differences will be described in detail below.

[0035] See also Figures 1 to 5 In this embodiment, the light-emitting mechanism 13 includes a lamp body 131 and two connecting springs 132. The lamp body 131 is arranged in the middle of the expander body 1, and the two connecting springs 132 are respectively arranged at the two ends of the tail end of the expander body 1. The lamp body 131 is electrically connected to the power supply cable 2 through the two connecting springs 132.

[0036] Preferably, a connecting portion 17 is provided at the tail end of the expander body 1, and a groove 21 is provided at the power supply portion of the power supply cable 2 for inserting the connecting portion 17, and wiring portions 22 electrically connected to the light-emitting mechanism 13 are arranged at intervals in the groove 21. During operation, when the connecting portion 17 is pressed into the groove 21, the two connecting springs 132 respectively abut against their respective corresponding wiring portions 22, thereby establishing an electrical connection.

[0037] As a further improvement of this embodiment, a limiting hole 171 is provided in the middle of the connecting portion 17, and the axial direction of the limiting hole 171 is perpendicular to the axial direction of the expander body 1. A limiting protrusion 211 corresponding to the limiting hole 171 is provided in the groove 21. The limiting protrusion 211 is inserted into the limiting hole 171 when the connecting portion 17 is inserted, which can improve the connection strength between the expander body 1 and the power supply cable 2. Preferably, a reinforcement groove 23 surrounding the limiting protrusion 211 is provided on the periphery of the power supply part of the power supply cable 2. When working, the connecting portion 17 is pressed into the groove 21, and the limiting protrusion 211 is inserted into the limiting hole 171, and then the medical tape is wrapped along the reinforcement groove 23, so that the expander body 1 and the power supply cable 2 are connected as a whole, which is more secure to use.

[0038] The beneficial technical effects of this embodiment include: the present invention can realize a series of tasks such as hooking of human body parts, dilation of surgical incisions, collection and exhaust of smoke, and light source irradiation of human body surgical parts, etc. The operation is convenient and quick, and can effectively expand the doctor's operating field of vision during surgery. At the same time, the tail end of the expander body can be detachably installed on the power supply part of the power supply cable, which can realize the rapid replacement of the expander body, facilitate disinfection and improve economic benefits.

[0039] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A disposable medical dilator, characterized in that: The invention comprises an expander body (1) for hooking a human body part to expand a surgical operation window so as to fully display the human body surgical operation part, and a power supply cable (2). The head end of the expander body (1) is provided with a hooking portion (11) for hooking a human body part, a flue (12) is provided inside the hooking portion (11), an inlet of the flue (12) is exposed to the outside from an end of the hooking portion (11) close to the human body surgical operation part, and a joint (121) connected to a corresponding smoke extraction device is provided at the outlet of the flue (12). A light-emitting mechanism (13) for providing lighting is embedded inside the expander body (1), a scattering portion (14) for evenly projecting light onto the human body surgical operation part is provided at the head end of the expander body (1), the tail end of the expander body (1) is detachably mounted on the power supply part of the power supply cable (2), and the wiring part of the light-emitting mechanism (13) is electrically connected to the power supply end of the power supply cable (2).

2. The disposable medical dilator according to claim 1, characterized in that: One end of the hook portion (11) is connected to the head end of the expander body (1), and the other end of the hook portion (11) is bent and arranged in a direction close to the hooked human body part after being extended in a direction close to the surgical operation part of the human body.

3. The disposable medical dilator according to claim 1, characterized in that: A projection portion (15) corresponding to the entrance of the flue (12) is provided at one end of the hook portion (11) close to the surgical operation site of the human body. The projection portion (15) is optically conductive with the light-emitting portion of the light-emitting mechanism (13). The projection portion (15) is aligned with the entrance of the flue (12) so as to project light indicating the entrance position of the flue (12) onto the surgical operation site of the human body.

4. The disposable medical dilator according to claim 1, characterized in that: The middle portion and the head end of the dilator body (1) are configured to be integrally injection-molded from a light-guiding material; an end of the scattering portion (14) away from the hook portion (11) is provided with a reflecting surface (141) for reflecting light; and an end of the scattering portion (14) close to the hook portion (11) is provided with a scattering surface (142) for uniformly scattering light.

5. The disposable medical dilator according to claim 1, characterized in that: Scattering protrusions (143) for expanding the light projection area are provided outwardly at both ends of the scattering portion (14).

6. The disposable medical dilator according to claim 1, characterized in that: A sealing component for preventing smoke from flowing back is provided in the flue (12), and the sealing component is configured as a one-way valve made of a flexible material.

7. The disposable medical dilator according to claim 1, characterized in that: The light-emitting portion of the light-emitting mechanism (13) is arranged in the middle of the dilator body (1), and a soft light indicating portion (16) is provided between the light-emitting portion of the light-emitting mechanism (13) and the head end of the dilator body (1). The soft light indicating portion (16) is arranged to extend along a connecting light path between the light-emitting portion of the light-emitting mechanism (13) and the head end of the dilator body (1).

8. The disposable medical dilator according to claim 1, characterized in that: The light-emitting mechanism (13) comprises a lamp body (131) and two connecting springs (132); the lamp body (131) is arranged in the middle of the expander body (1); the two connecting springs (132) are respectively arranged at two ends of the rear end of the expander body (1); the lamp body (131) is electrically connected to the power supply cable (2) via the two connecting springs (132).

9. The disposable medical dilator according to claim 1, characterized in that: The tail end of the expander body (1) is provided with a connecting portion (17), the power supply portion of the power supply cable (2) is provided with a groove (21) for the connecting portion (17) to be placed, and wiring portions (22) electrically connected to the light-emitting mechanism (13) are arranged at intervals in the groove (21).

10. The disposable medical dilator according to claim 9, characterized in that: A limiting hole (171) is provided in the middle of the connecting portion (17), the axial direction of the limiting hole (171) being perpendicular to the axial direction of the expander body (1), and a limiting protrusion (211) corresponding to the limiting hole (171) is provided in the recess (21), and the limiting protrusion (211) is inserted into the limiting hole (171) when the connecting portion (17) is inserted.

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