Disposable medical dilator

Abstract

The present invention relates to the technical field of surgical equipment, specifically to a disposable medical dilator, which includes a dilator body for hooking the expansion operation window of a human body part to fully display the human surgical operation site and a power supply cable. The head end of the dilator body is provided with a hooking part for hooking the human body part, and a flue is arranged inside the hooking part. A light-emitting mechanism for providing illumination is embedded inside the dilator body. The tail end of the dilator body is detachably installed on the power supply part of the power supply cable. The present invention can realize a series of operations such as hooking of human body parts, expansion of surgical incisions, collection and exhaustion of flue gas, and light source irradiation of the human surgical site. The operation is convenient and fast, which can effectively expand the operation vision of doctors during surgery. At the same time, the tail end of the dilator body is 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.

Description

Technical Field

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

[0002] When performing surgery on human tissues, devices such as dilators or retractors are usually used to stretch the surgical incision, so as to help doctors obtain a clear field of view, facilitating the doctor to perform surgical operations on the tissues inside the incision. For example, the orthopedic surgical dilator disclosed in a Chinese patent (Publication No.: CN112932570B), in this patented technology, it includes two rod bodies hinged in an X shape. The tail ends of the two rod bodies are respectively provided with grip rings, and the front ends of the two rod bodies are respectively provided with dilating plates. Both dilating plates are arc-shaped plates. The front ends of the two rod bodies are plate-shaped arcs and the arched parts in the middle bulge outward. And convex columns are respectively provided on the outer side walls of the middle parts of the front plate-shaped bodies of the two rod bodies. Through holes are respectively opened in the middle parts of the two dilating plates. The two dilating plates are respectively sleeved on the corresponding convex columns through the through holes, and the dilating plates can rotate on the convex columns. The dilating plates are connected to the plate-shaped bodies at the front ends of the rod bodies through magnets. The surgical incision is expanded through outward expansion and has a holding function. However, with the improvement of surgical techniques, the surgical incision gradually becomes smaller. Continuing to use such dilators is not only not applicable to the expansion of small surgical incisions, but also because it occupies the main field of view position of the surgical incision, making it inconvenient for doctors to perform delicate operations. At the same time, as the surgical incision becomes smaller, the light source irradiation effect inside the incision is also poor. And when using a laser scalpel for surgery, the generated smoke and dust will not only contaminate the wound, but also further deteriorate the visual environment inside the incision. Therefore, an additional smoke exhaust device needs to be added and operated by a dedicated person for smoke exhaust work, resulting in an increase in 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: The existing dilators cannot meet the expansion requirements for small surgical incisions, the light source irradiation effect is poor. When using a laser scalpel for surgery, the generated smoke and dust require an additional smoke exhaust device to be operated by a dedicated person for smoke exhaust work, resulting in an increase in interference factors during the operation and a lower safety factor.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: a disposable medical dilator, comprising a dilator body for hooking the operation window of the human body part expansion operation to fully display the human body operation part and a power supply cable. The head end of the dilator body is provided with a hooking part for hooking the human body part. A flue is arranged 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 operation part. The outlet of the flue is provided with a connector connected to a corresponding smoking device. A lighting mechanism for providing illumination is embedded inside the dilator body. The head end of the dilator body is provided with a scattering part for evenly projecting light on the human body operation part. The tail end of the dilator body is detachably installed on the power supply part of the power supply cable. The wiring part of the lighting mechanism is electrically connected to the power supply end of the power supply cable.

[0005] When the present invention works, it can realize a series of operations such as hooking the human body part, expanding the surgical incision, collecting and exhausting the smoke, and illuminating the light source of the human body operation part. The operation is convenient and fast, which can effectively expand the operation vision of the doctor during the operation. At the same time, the tail end of the dilator body is 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.

[0006] Preferably, one end of the hooking part is connected to the head end of the dilator body, and the other end of the hooking part extends in the direction close to the human body operation part and then bends in the direction close to the hooked human body part.

[0007] Preferably, one end of the hooking part close to the human body operation part is provided with a projection part corresponding to the entrance of the flue. The projection part is optically connected to the light-emitting part of the lighting mechanism. The projection part is aligned with the entrance of the flue to project the light indicating the position of the flue entrance on the human body operation part.

[0008] When the present invention works, the projection part projects the light indicating the position of the flue entrance on the human body operation part, which can provide a reference for the doctor, facilitate aligning the entrance of the flue with the part where the smoke is generated, improve the efficiency of smoke collection, avoid the situation that the wound is contaminated due to the overflow of the smoke, and thus improve the safety factor.

[0009] Preferably, the middle part and the head end of the dilator body are integrally injection molded from light guide materials. One end of the scattering part away from the hooking part is provided with a reflecting surface for reflecting light and avoiding the light from irradiating outward. One 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 works, the dilator body is made by integrally injection molding of a light guide material. At the same time, a reflecting surface for reflecting light to avoid external light irradiation is arranged 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 avoid the light from irradiating the doctor's eyes, improve the doctor's usage experience, and is suitable for use in fine surgical operations.

[0011] Preferably, both ends of the scattering part are convexly provided with scattering protrusions for expanding the light projection area.

[0012] Preferably, a sealing component for preventing the reverse flow of flue gas is provided in the flue, and the sealing component is arranged as a one-way valve made of a flexible material.

[0013] Preferably, the light-emitting part of the light-emitting mechanism is arranged in the middle of the dilator body. A soft light indicating part is provided between the light-emitting part of the light-emitting mechanism and the head end of the dilator body, and the soft light indicating part extends along the communication light path between the light-emitting part of the light-emitting mechanism and the head end of the dilator body.

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

[0015] Preferably, a connecting part is provided at the tail end of the dilator body. A groove for the connecting part to be inserted is provided at the power supply part of the power supply cable, and wiring parts electrically connected to the light-emitting mechanism are arranged at intervals in the groove.

[0016] Preferably, a limiting hole is opened in the middle of the connecting part. The axial direction of the limiting hole is perpendicular to the axial direction of the dilator 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.

[0017] The beneficial technical effects of the present invention include:

[0018] 1. The present invention can realize a series of operations such as hooking of human body parts, expansion of surgical incisions, collection and exhaustion of flue gas, and light source irradiation of human surgical parts. The operation is convenient and fast, which can effectively expand the operation vision of doctors 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.

[0019] 2. The present invention projects the light indicating the position of the flue inlet onto the human surgical operation site by means of a projection part, which can provide a reference for doctors, facilitate aligning the inlet of the flue with the site where the flue gas is generated, improve the efficiency of flue gas collection, avoid the situation that the wound is contaminated due to the overflow of flue gas, and thus improve the safety factor.

[0020] 3. The dilator body of the present invention is made by integrally injection molding with a light guide material, and at the same time, a reflecting surface for reflecting light to avoid external irradiation of light is arranged to adjust the light path, which can accurately introduce the light into the incision. While making full use of the light emitted by the light-emitting mechanism, it can also avoid the light from irradiating the doctor's eyes, improve the doctor's use experience, and is suitable for fine surgical operations.

[0021] 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

[0022] The following further describes the present invention with reference to the drawings:

[0023] Figure 1 It is a schematic structure diagram of a disposable medical dilator Figure 1 ;

[0024] Figure 2 For Figure 1 The partial enlarged view of part A in

[0025] Figure 3 For Figure 1 The partial enlarged view of part B in

[0026] Figure 4 It is a schematic structure diagram of a disposable medical dilator Figure 2 ;

[0027] Figure 5 For Figure 4 The partial enlarged view of part C in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following explains and illustrates the technical solutions of the embodiments of the present invention with reference to the drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0029] In the following description, terms indicating orientation or positional relationship such as "inner", "outer", "upper", "lower", "left", "right", etc. are only for the convenience of describing the embodiments and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Embodiment 1:

[0030] Please refer to Figure 1 , this embodiment discloses a disposable medical dilator, which includes a dilator body 1 for hooking the operation window of the human body part expansion surgery to fully display the human body surgery operation part and a power supply cable 2. The following will be described in detail with reference to the accompanying drawings.

[0031] Please refer to Figures 1 to 5 , in this embodiment, the head end of the dilator body 1 is provided with a hooking part 11 for hooking the human body part. A flue 12 is arranged inside the hooking part 11. The inlet of the flue 12 is exposed to the outside from one end of the hooking part 11 close to the human body surgery operation part. The outlet of the flue 12 is provided with a joint 121 connected to the corresponding smoking device. A lighting mechanism 13 for providing illumination is embedded inside the dilator body 1. The head end of the dilator body 1 is provided with a scattering part 14 for evenly projecting light onto the human body surgery operation part. The tail end of the dilator body 1 is detachably installed on the power supply part of the power supply cable 2, and the wiring part of the lighting mechanism 13 is electrically connected to the power supply end of the power supply cable 2.

[0032] When this embodiment works, it can realize a series of operations such as hooking the human body part, expanding the surgical incision, collecting and exhausting the smoke, and illuminating the light source of the human body surgery part. The operation is convenient and fast, which can effectively expand the operation vision of the doctor during the operation. At the same time, the tail end of the dilator body 1 is 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.

[0033] In specific implementation, one end of the hooking part 11 is connected to the head end of the dilator body 1, and the other end of the hooking part 11 extends in the direction close to the human body surgery operation part and then bends in the direction close to the hooked human body part, which can maintain a good contact effect when hooking the human body part, thus avoiding the risk of secondary injury to the human body when pulling the human body part.

[0034] Preferably, one end of the hooking part 11 close to the human body surgical operation site is provided with a projection part 15 corresponding to the inlet of the flue 12. The projection part 15 is optically connected to the light-emitting part of the light-emitting mechanism 13. The projection part 15 is aligned with the inlet of the flue 12 to project the light indicating the position of the inlet of the flue 12 onto the human body surgical operation site. Preferably, a sealing component for preventing the reverse flow of flue gas is arranged in the flue 12, and the sealing component is arranged as a one-way valve made of a flexible material.

[0035] When this embodiment works, the projection part 15 is used to project the light indicating the position of the inlet of the flue 12 onto the human body surgical operation site, which can provide a reference for the doctor, facilitate aligning the inlet of the flue 12 with the part where the flue gas is generated, improve the efficiency of flue gas collection, avoid the situation that the wound is contaminated due to the overflow of flue gas, and thus improve the safety factor.

[0036] In this embodiment, the middle part and the head end of the dilator body 1 are integrally injection-molded from a light guide material. One end of the scattering part 14 away from the hooking part 11 is provided with a reflecting surface 141 for reflecting light and avoiding the light from irradiating outward, and one end of the scattering part 14 close to the hooking part 11 is provided with a scattering surface 142 for uniformly scattering light.

[0037] As a further improvement of this embodiment, the light-emitting part of the light-emitting mechanism 13 is arranged in the middle of the dilator body 1, and a soft light indicating part 16 is arranged between the light-emitting part of the light-emitting mechanism 13 and the head end of the dilator body 1. The soft light indicating part 16 extends along the communication optical path between the light-emitting part of the light-emitting mechanism 13 and the head end of the dilator body 1, which can clearly prompt the extending direction of the dilator body 1. During a long operation, it can reduce the difficulty for the doctor to find the dilator body 1, facilitate the doctor's use, and have a good user experience.

[0038] When this embodiment works, the dilator body 1 is made by the way of integral injection molding of a light guide material, and at the same time, the reflecting surface 141 for reflecting light to avoid the light from irradiating outward is arranged to adjust the optical path, which can accurately introduce the light into the incision. While making full use of the light emitted by the light-emitting mechanism 13, it can also avoid the light from irradiating the doctor's eyes, improve the doctor's use experience, and is suitable for fine surgical operations.

[0039] As a further improvement of this embodiment, in order to further improve the light scattering effect of the scattering part 14, it is necessary to make targeted adjustments to the dimensions of each part of the scattering part 14. The included angle between the reflecting surface 141 and the optical path in the soft light indicating part 16 needs to be optimized according to the area of the human body surgical operation site. In actual work, the included angle between the reflecting surface 141 and the optical path in the soft light indicating part 16 is calculated by the following formula:

[0040] ;

[0041] Wherein: A is the area of the human surgical operation site, that is, the area to be irradiated by the light source, and it needs to be selected according to the type of surgery during operation. L is the distance from the scattering surface 142 to the human surgical operation site. is the angle between the reflecting surface 141 and the optical path in the soft light indicating part 16, and R is the radius of curvature of the scattering surface 142. is the curvature correction formula related to the refractive index n of the material, and in specific implementation, it can be set as which can optimize the regulation of the light beam.

[0042] Preferably, both ends of the scattering part 14 are convexly provided with scattering protrusions 143 for expanding the light projection area, and at the same time, the area of the scattering surface 142 after adding the scattering protrusions 143 is 1.1 to 1.5 times that before adding. Embodiment 2:

[0043] Please refer to Figure 3 This embodiment provides a disposable medical dilator. The same parts as those in Embodiment 1 will not be described in detail, and the differences will be described in detail below.

[0044] Please refer to Figures 1 to 5 In this embodiment, the light-emitting mechanism 13 includes a lamp body 131 and two connecting elastic pieces 132. The lamp body 131 is arranged in the middle of the dilator body 1, and the two connecting elastic pieces 132 are respectively arranged at both ends of the tail end of the dilator body 1. The lamp body 131 is electrically connected to the power supply cable 2 through the two connecting elastic pieces 132.

[0045] Preferably, the tail end of the dilator body 1 is provided with a connecting part 17, and the power supply part of the power supply cable 2 is provided with a groove 21 for the connecting part 17 to be inserted. The wiring parts 22 electrically connected to the light-emitting mechanism 13 are arranged at intervals in the groove 21. During operation, when the connecting part 17 is pressed into the groove 21, the two connecting elastic pieces 132 are respectively abutted against the corresponding wiring parts 22, thereby establishing an electrical connection.

[0046] As a further improvement of this embodiment, a limiting hole 171 is formed in the middle of the connecting portion 17. The axial direction of the limiting hole 171 is perpendicular to the axial direction of the dilator body 1. A limiting protrusion 211 corresponding to the limiting hole 171 is provided in the groove 21. When the connecting portion 17 is inserted, the limiting protrusion 211 is inserted into the limiting hole 171, which can improve the connection strength between the dilator body 1 and the power supply cable 2. Preferably, a reinforcing groove 23 surrounding the limiting protrusion 211 is formed on the periphery of the power supply portion of the power supply cable 2. During operation, when the connecting portion 17 is pressed into the groove 21 and the limiting protrusion 211 is inserted into the limiting hole 171, medical tape is wound along the reinforcing groove 23, thereby connecting the dilator body 1 and the power supply cable 2 into one body, making it more firm to use.

[0047] The beneficial technical effects of this embodiment include: The present invention can realize a series of operations such as hooking of human body parts, expansion of surgical incisions, collection and exhaustion of smoke, and light source irradiation of the human surgical site. The operation is convenient and fast, which can effectively expand the operation vision of doctors during surgery. At the same time, the tail end of the dilator body can be detachably installed on the power supply portion of the power supply cable, which can realize the rapid replacement of the dilator body, facilitate disinfection and improve economic benefits.

[0048] As described above, only the specific embodiments of the present invention are provided, 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 content 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. Disposable medical dilator, characterized in that: It includes a dilator body (1) for hooking the operation window of the human body part expansion operation to fully display the human body operation part and a power supply cable (2). The head end of the dilator body (1) is provided with a hooking part (11) for hooking the human body part. A flue (12) is arranged inside the hooking part (11). The inlet of the flue (12) is exposed to the outside from one end of the hooking part (11) close to the human body operation part. The outlet of the flue (12) is provided with a joint (121) connected to the corresponding smoking device. A lighting mechanism (13) for providing illumination is embedded inside the dilator body (1). The head end of the dilator body (1) is provided with a scattering part (14) for evenly projecting light on the human body operation part. The tail end of the dilator body (1) is detachably installed on the power supply part of the power supply cable (2). The wiring part of the lighting mechanism (13) is electrically connected to the power supply end of the power supply cable (2). One end of the hooking part (11) close to the human body operation part is provided with a projection part (15) corresponding to the inlet of the flue (12). The projection part (15) is optically connected to the lighting part of the lighting mechanism (13). The projection part (15) is aligned with the inlet of the flue (12) to project the light indicating the position of the inlet of the flue (12) on the human body operation part. The middle part and the head end of the dilator body (1) are integrally injection molded from light guiding materials. One end of the scattering part (14) far from the hooking part (11) is provided with a reflecting surface (141) for reflecting light. One end of the scattering part (14) close to the hooking part (11) is provided with a scattering surface (142) for evenly scattering light. The lighting part of the lighting mechanism (13) is arranged in the middle part of the dilator body (1). A soft light indicating part (16) is arranged between the lighting part of the lighting mechanism (13) and the head end of the dilator body (1). The soft light indicating part (16) extends along the communication optical path between the lighting part of the lighting mechanism (13) and the head end of the dilator body (1).

2. The disposable medical dilator according to claim 1, characterized in that: One end of the hooking part (11) is connected to the head end of the dilator body (1). The other end of the hooking part (11) extends in the direction close to the human body operation part and then bends in the direction close to the hooked human body part.

3. The disposable medical dilator according to claim 1, characterized in that: Both ends of the scattering part (14) are convexly provided with scattering protrusions (143) for expanding the light projection area.

4. The disposable medical dilator according to claim 1, wherein: A sealing component for preventing the reverse flow of flue gas is arranged inside the flue (12). The sealing component is a one-way valve made of flexible materials.

5. The disposable medical dilator according to claim 1, wherein: The lighting mechanism (13) includes a lamp body (131) and two connecting elastic pieces (132). The lamp body (131) is arranged in the middle part of the dilator body (1). The two connecting elastic pieces (132) are respectively arranged at both ends of the tail end of the dilator body (1). The lamp body (131) is electrically connected to the power supply cable (2) through the two connecting elastic pieces (132).

6. The disposable medical dilator according to claim 1, wherein: A connecting part (17) is provided at the tail end of the expander body (1), a groove (21) for the connecting part (17) to be inserted into is provided at the power supply part of the power supply cable (2), and wiring parts (22) electrically connected to the light emitting mechanism (13) are arranged at intervals in the groove (21).

7. The disposable medical dilator according to claim 6, wherein: A limiting hole (171) is formed in the middle of the connecting part (17), 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), and the limiting protrusion (211) is inserted into the limiting hole (171) when the connecting part (17) is inserted.

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