Puncturing card for endoscope

Abstract

The utility model belongs to the technical field of medical instruments, and provides a trocar for an endoscope, and the trocar comprises an outer cylinder which comprises a far end and a near end, and the far end is used for entering a cavity; the sealing cover is detachably inserted into the near end of the outer cylinder to seal the outer cylinder, the sealing cover and the outer cylinder form a channel allowing surgical instruments to pass through, and a light-emitting part is arranged on the side, facing the far end of the outer cylinder, of the sealing cover; a light path is formed in the outer cylinder, and light emitted by the light-emitting part can be transmitted to the far end of the outer cylinder along the light path so as to illuminate the surgical instrument and illuminate the cavity. The light-emitting part is arranged on the end face, facing the far end of the outer barrel, of the sealing cover, the light path is formed on the outer barrel (including the barrel wall of the outer barrel), then light emitted by the light-emitting part is transmitted to the far end of the outer barrel along the light path, auxiliary illumination is carried out on the surgical instrument and the cavity, illumination of an original endoscope lens is combined, and the illumination efficiency is improved. And illumination on the tail end of the surgical instrument and the interior of the cavity can be more sufficient and uniform.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a stamp card for laparoscopes. Background Art

[0002] Laparoscopic surgery refers to a technique in which a hole is punched on the body surface and surgical instruments are inserted through the hole into the patient's body cavity for resection, repair and other operations. Laparoscopic surgery causes less damage to tissues than traditional surgical operations, and recovery is faster after surgery, with less damage to the human body. Therefore, laparoscopic surgery has developed rapidly and has replaced traditional open surgery in many aspects. Holes are punched through the card, and then the surgeon can insert tiny light sources, cameras and surgical instruments through the card. The surgeon operates the surgical instruments through the images transmitted to the monitor to perform the operation. This type of surgical operation is called laparoscopic surgery when performed in the abdominal cavity, arthroscopic surgery when performed in the joints, and thoracoscopic surgery when performed in the chest cavity.

[0003] In existing laparoscopic surgery or laparoscopic robots, the quality of internal lighting in the cavity is related to the quality of endoscopic imaging and affects the endoscopic visual feedback of laparoscopic surgery. Currently, most surgical plans use an external light source to introduce light from the light source into the body through optical fiber, which is generally combined with an endoscope. In this way, the light source and the endoscope lens are made at the end of the endoscope. This method causes the light to be concentrated at the target point, which means that the farther away from the target point, the worse the lighting, so that the imaging light source is concentrated toward the center. This will lead to insufficient illumination of the surrounding tissues, unclear surrounding tissues in endoscopic imaging, and abnormal color reproduction.

[0004] Endoscopes and other instruments enter the human body through a poking card for surgery. In reality, the poking card only serves as a guide and does not have a lighting function. Generally, a light source is installed on the endoscope to facilitate surgery. This setting only illuminates the surgical site during laparoscopic surgery, and the surrounding tissues are not illuminated enough. In addition, the overall tissue light source is uneven, resulting in low imaging quality. In order to restore the image color, the complexity of the software algorithm is increased. Utility Model Content

[0005] The embodiment of the present application provides a laparoscope poking card, which can make the lighting of surgical instruments and the cavity more sufficient and uniform, thereby improving the imaging quality of the endoscope and improving the observation effect of medical staff during the operation.

[0006] The embodiment of the present application provides a laparoscope poking card, comprising:

[0007] An outer cylinder, comprising a distal end and a proximal end, wherein the distal end is used to enter the cavity;

[0008] A sealing cover is detachably inserted into the proximal end of the outer tube to seal the outer tube, the sealing cover and the outer tube form a passage for surgical instruments to pass through, and a light-emitting member is provided on one side of the sealing cover facing the distal end of the outer tube;

[0009] The outer tube is formed with a light passage, and the light emitted by the light emitting member can be transmitted along the light passage to the distal end of the outer tube to illuminate the surgical instrument and thus illuminate the cavity.

[0010] In a feasible implementation, the light passage is formed in the wall of the outer tube;

[0011] The outer tube is constructed with a light-transmitting surface and a reflective surface, and the light path includes a path in which the light passes through the light-transmitting surface, is totally reflected by the reflective surface, and then is incident on the cavity along the wall of the outer tube.

[0012] In a feasible implementation, the reflective surface includes a first reflective surface and a second reflective surface;

[0013] The first reflection surface totally reflects the incident light to the second reflection surface, and the second reflection surface totally reflects the incident light to the cylinder wall, so that the light is emitted along the axial direction of the outer cylinder.

[0014] In a feasible implementation, the outer cylinder includes a first cylinder body, an inner cone cylinder body and a second cylinder body connected in sequence, the first cylinder body is used to connect the sealing cover, the inner cone cylinder body and the second cylinder body form the light path, and the inner cone cylinder body forms the light-transmitting surface and the reflective surface.

[0015] In a feasible implementation, the light-transmitting surface is arranged opposite to the light-emitting element and is perpendicular to the axial direction of the second cylinder;

[0016] The light vertically passes through the light-transmitting surface to enter the wall of the inner cone cylinder.

[0017] In a feasible implementation, the first reflecting surface is located on the outer side surface of the inner conical cylinder, and the second reflecting surface is located on the inner side surface of the inner conical cylinder. The second reflecting surface is used to totally reflect the incident light into the cylinder wall of the second cylinder so that the light is emitted along the axial direction of the second cylinder.

[0018] In a feasible implementation, the refractive index of the medium inside the wall of the inner cone cylinder is greater than the refractive index of the medium outside the poking card.

[0019] In a feasible implementation, a scattering surface is formed on the outer end surface of the second cylinder to scatter the light into the cavity.

[0020] In a feasible implementation, the light-emitting element includes a plurality of lamp beads, and an array of the plurality of lamp beads is disposed on the end surface of the sealing cover to form an annular light source.

[0021] In a feasible implementation, a power interface is provided on the outer end surface of the sealing cover so as to supply power to the lamp bead through the power interface.

[0022] In a feasible implementation, the outer cylinder is made of light-transmitting plastic;

[0023] The sealing cover is made of metal.

[0024] The laparoscope poke card provided in the embodiment of the present application is provided with a light emitting component on the end face of the sealing cover facing the distal end of the outer tube, and a light path is formed on the outer tube (including the outer tube wall and the inner cavity of the outer tube), so that the light emitted by the light emitting component is transmitted to the distal end of the outer tube along the light path to assist in lighting the surgical instrument and the cavity, and combined with the lighting of the original endoscope lens, the lighting of the end of the surgical instrument and the cavity can be more sufficient and uniform, including the use of multiple poke cards to form the effect of a shadowless lamp in the cavity, thereby improving the imaging quality of the endoscope and improving the observation effect of medical staff during surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic structural diagram of a sealing cover of a laparoscope stamp card provided in an embodiment of the present application;

[0027] Figure 2 is a schematic front view of a sealing cover of a laparoscope stamp card provided in an embodiment of the present application;

[0028] Figure 3 is a cross-sectional schematic diagram of a sealing cover of a laparoscope poke card provided in an embodiment of the present application;

[0029] Figure 4 It is a schematic structural diagram of an outer cylinder of a laparoscope stamping card provided in an embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the structure of a laparoscope poke card provided according to an embodiment of the present application;

[0031] Figure 6is a schematic cross-sectional structural diagram of a laparoscope poke card provided according to an embodiment of the present application;

[0032] Figure 7 yes Figure 6 A schematic diagram of a local enlarged structure;

[0033] Figure 8 yes Figure 7 One of the partial enlarged structural diagrams of the inner cone cylinder;

[0034] Fig. 9 yes Figure 7 The second schematic diagram of the partial enlarged structure of the inner cone body;

[0035] Fig.10 is a schematic diagram of the outer end surface structure of the second cylinder provided according to an embodiment of the present application;

[0036] Fig.11 Schematic diagram of application scenarios of the laparoscope poke card provided according to an embodiment of the present application.

[0037] Reference numerals:

[0038] 100, outer cylinder; 110, first cylinder body; 120, inner cone cylinder body; 121, light-transmitting surface; 122, first reflecting surface; 123, second reflecting surface; 130, second cylinder body; 131, scattering surface;

[0039] 200, sealing cover; 201, through hole;

[0040] 300, light emitting element; 302, light path; 301, power interface;

[0041] 400, endoscope;

[0042] 500. Cavity. DETAILED DESCRIPTION

[0043] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0044] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model 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 cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0046] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] In the related art, an optical fiber is combined with an endoscope to guide an external light source to the lens of the endoscope, thereby achieving local illumination in the cavity. This setting results in insufficient illumination of the human tissue around the cavity and uneven light source of the overall tissue, resulting in poor imaging quality.

[0049] It should be noted that the cavity in this example can be a cavity in human tissue, such as the abdominal cavity, pelvic cavity, thoracic cavity, etc.; the light-emitting part refers to a device or material with a light-emitting function, such as a light-emitting diode (LED) or an organic light-emitting diode (OLED) to have a lighting effect.

[0050] The surgical instrument in this example may be an endoscope or other executing instruments, such as forceps, needle holders, scissors, bipolar cauterizers, tissue stabilizers or retractors, clip applicators, anastomosis devices, etc.

[0051] Figure 1 is a schematic structural diagram of a sealing cover of a laparoscope stamp card provided in an embodiment of the present application; Figure 2 is a schematic front view of a sealing cover of a laparoscope stamp card provided in an embodiment of the present application; Figure 3 is a cross-sectional schematic diagram of a sealing cover of a laparoscope poke card provided in an embodiment of the present application; Figure 4 It is a schematic structural diagram of an outer cylinder of a laparoscope stamping card provided in an embodiment of the present application;

[0052] Figure 5 It is a schematic diagram of the structure of a laparoscope poke card provided according to an embodiment of the present application; Figure 6 is a schematic cross-sectional structural diagram of a laparoscope poke card provided according to an embodiment of the present application; Figure 7 yes Figure 6 Schematic diagram of the local enlarged structure.

[0053] Based on the above problems, refer to Figures 1 to 7 As shown, an embodiment of the present application provides a laparoscope poke card, which may include an outer tube 100 and a sealing cover 200 .

[0054] The outer cylinder 100 includes a distal end and a proximal end, and the distal end is used to enter the cavity 500; the sealing cover 200 can be removably inserted into the proximal end of the outer cylinder 100 to seal the outer cylinder 100, and the sealing cover 200 and the outer cylinder 100 form a channel for surgical instruments to pass through, and a light-emitting component 300 is provided on the side of the sealing cover 200 facing the distal end of the outer cylinder 100; the outer cylinder 100 forms a light passage 302, and the light emitted by the light-emitting component 300 can be transmitted along the light passage 302 to the distal end of the outer cylinder 100 to illuminate the surgical instruments and the cavity 500.

[0055] It is understandable that the distal end of the outer tube 100 is generally provided with a conical puncture head to facilitate penetration through human skin into the cavity 500. The sealing cover 200 can be threadedly connected to the proximal end of the outer end, but this is not limited. The sealing cover 200 has a through hole 201 for surgical instruments (such as an endoscope 400) to pass through and enter the outer tube 100. The proximal end of the sealing cover 200 has a sealing rubber cap with a rubber center hole, and the center of the distal end has a cross sealing rubber cap. The setting of the sealing rubber cap can seal the cavity 500 and the through hole 201 when pneumoperitoneum is formed in the cavity 500, thereby avoiding air leakage. Moreover, when the surgical instrument (such as an endoscope 400) passes through the through hole 201, it can form a seal with the cross sealing rubber cap to reduce air leakage.

[0056] Since the sealing cover 200 and part of the outer cylinder 100 are located outside the human tissue, in order to transmit as much illumination light as possible from the light emitting member 300 on the sealing cover 200 to the cavity 500, first, the light emitting member 300 needs to be arranged on the end surface of the sealing cover 200 facing the distal end of the outer cylinder 100, that is, the end surface facing the human tissue, and then, the outer cylinder 100 is at least partially made of transparent material to form a light path 302 between the cylinder wall formed by the transparent material and / or the central hole of the outer cylinder 100 (that is, the central channel through which the surgical instrument passes), and the central hole can be understood as a hole reserved in the outer cylinder 100 for the surgical instrument (such as the endoscope 400) to pass through, and the light emitted by the light emitting member 300 can be transmitted to the cavity 500 through the gap between the surgical instrument and the inner side of the outer cylinder 100 to provide illumination for the cavity 500. Of course, in order to improve the lighting effect, this example mainly transmits light through the transparent cylinder wall of the outer cylinder 100 with a certain thickness.

[0057] The transmission of light by the wall of the outer tube 100 may include that the light enters the tube wall from the proximal end, is reflected multiple times in the tube wall, and is emitted from the distal end of the outer tube 100, thereby providing lighting for the end of the surgical instrument and the cavity 500; or the light enters the tube wall from the proximal end, is totally reflected multiple times in the tube wall, and is emitted from the distal end of the outer tube 100, thereby providing lighting for the end of the surgical instrument and the cavity 500. In this case, the interface angle of the tube wall needs to be designed so that the incident angle of the light after entering the tube wall (transparent material, that is, the light enters the optically dense medium, and the outside air can be understood as the optically sparse medium) is greater than the critical angle, thereby achieving total reflection of the light, so that as much light emitted by the light-emitting component 300 as possible is transmitted to the cavity 500, and combined with the lighting of the original endoscope 400 lens, the maximum lighting in the cavity 500 is achieved, thereby improving the observation effect of medical staff.

[0058] In addition, when performing laparoscopic surgery, multiple poke cards, for example three, will be set up. Multiple poke cards will provide lighting for human tissue and other targets in cavity 500 from multiple angles, and can form an effect similar to that of a shadowless lamp, which can further improve the adequacy and uniformity of lighting in cavity 500.

[0059] In the embodiment of the present application, a light-emitting component 300 is arranged on the end face of the sealing cover 200 facing the distal end of the outer cylinder 100, and a light path 302 is formed on the outer cylinder 100 (including the cylinder wall of the outer cylinder 100 and the inner cavity of the outer cylinder 100), so that the light emitted by the light-emitting component 300 is transmitted along the light path 302 to the distal end of the outer cylinder 100, so as to provide auxiliary lighting for the surgical instruments and the cavity 500. Combined with the lighting of the original endoscope 400 lens, the lighting in the cavity 500 can be made more sufficient and uniform, thereby improving the imaging quality of the endoscope 400 and improving the observation effect of medical staff during surgery.

[0060] Next, we will combine the attached Figure 1-Figure 11 The specific structure of the laparoscope stamp card in the embodiment of the present application is described in detail.

[0061] Reference Figure 7 , Figure 8 As shown, in some embodiments, the light path 302 is formed in the wall of the outer cylinder 100; the outer cylinder 100 is constructed with a light-transmitting surface 121 and a reflective surface, and the light path 302 includes a path for light to pass through the light-transmitting surface 121, be totally reflected by the reflective surface, and then be incident on the cavity 500 along the wall of the outer cylinder 100.

[0062] It can be understood that the wall of the outer tube 100 can be set to a transparent material, and the light emitted by the light-emitting element 300 along the axial direction of the outer tube 100 can partially or completely enter the wall of the outer tube 100, and then be reflected or fully reflected in the wall of the outer tube 100 to be emitted from the outer tube 100 into the cavity 500.

[0063] Specifically, the wall of the outer cylinder 100 has a certain thickness and can be made of transparent plastic, that is, the wall is a light-dense medium, and the outside air is a light-sparse medium. When the light enters the light-dense medium after passing through the wall, part of the light can be reflected by the wall surface of the wall (the interface with the outside air), and the other part of the light can be refracted from the wall. The reflected light can continue to reflect in the wall until it is emitted into the cavity 500.

[0064] Of course, in order to make full use of the light emitted by the light-emitting component 300, the shape of the tube wall can be reasonably designed so that the angle of the light entering the tube wall (incident light) is greater than the critical angle, thereby achieving total reflection of the light and achieving the purpose of taking all the light entering the tube wall into the cavity 500, thereby improving the lighting intensity of the cavity 500.

[0065] Since the light emitting member 300 is arranged on the end surface of the sealing cover 200 facing the distal end of the outer cylinder 100, in order to allow the light emitted by it (most of which is diverged along the axial direction of the outer cylinder 100) to enter the cylinder wall of the outer cylinder 100 as much as possible, a light-transmitting surface 121 facing the light emitting member 300 is constructed on the inner wall surface of the outer cylinder 100. The light-transmitting surface 121 can be perpendicular to the light (that is, perpendicular to the axial direction of the outer cylinder 100), so that most of the light emitted by the light emitting member 300 enters the cylinder wall, and a reflecting surface is arranged inside the cylinder wall. The reflecting surface can fully reflect the light entering the cylinder wall so that the light is emitted along the axial direction of the cylinder wall, thereby realizing the illumination of the cavity 500 and further realizing the auxiliary lighting function of the card punching.

[0066] Reference Figure 6 and Figure 7 As shown, in some embodiments, the outer cylinder 100 includes a first cylinder body 110, an inner cone cylinder body 120 and a second cylinder body 130 connected in sequence, the first cylinder body 110 is used to connect the sealing cover 200, the inner cone cylinder body 120 and the second cylinder body 130 form a light passage 302, and the inner cone cylinder body 120 forms a light-transmitting surface 121 and a reflective surface.

[0067] Specifically, the first cylinder 110 is mainly used to install the sealing cover 200, and the second cylinder 130 is used to puncture into human tissue. The diameter of the second cylinder 130 is smaller than the diameter of the first cylinder 110, and the first cylinder 110 and the second cylinder 130 with different diameters are connected through an inner cone cylinder 120 with a gradually decreasing inner diameter. The more important purpose of the setting of the inner cone cylinder 120 is to achieve full emission of light entering its cylinder wall.

[0068] The inner cone body 120 can be made of a light-transmitting plastic, and its wall is a light-transmitting, light-dense medium relative to the external air medium. In this example, the critical angle of the wall material can be 42° (that is, when the refraction angle is 90°, the incident angle can be called the critical angle, which is specifically determined by the wall material and is not limited here). By designing the inclination of the inner wall surface and the outer wall surface of the inner cone body 120, the incident angle in the light path 302 can be adjusted to be greater than the critical angle, such as Figure 8 As shown, the incident angle of the light is 45°. Therefore, after the light enters the cylinder wall from the light-transmitting surface 121, it is totally reflected when it reaches the wall of the inner cone cylinder 120 (i.e., the interface with the outside air), and continues to scatter along the inner cone cylinder 120 and the second cylinder 130 to the inside of the cavity 500, thereby realizing the function of auxiliary lighting for poking cards.

[0069] In addition, the first cylinder 110, the inner cone cylinder 120 and the second cylinder 130 can be manufactured separately and then spliced ​​and installed, or they can be manufactured as one piece. In particular, the inner cone cylinder 120 and the second cylinder 130 can be manufactured as one piece to ensure the smoothness of the light path 302, thereby ensuring the stability of light transmission of the light-emitting component 300.

[0070] Reference Figure 8 and Fig. 9 As shown, in some embodiments, the light-transmitting surface 121 is arranged opposite to the light-emitting element 300 and is perpendicular to the axial direction of the second cylinder 130 ; light passes vertically through the light-transmitting surface 121 to enter the cylinder wall of the inner cone cylinder 120 .

[0071] It can be understood that most of the light emitted by the light-emitting component 300 is transmitted along the axial direction of the outer cylinder 100, and the light-transmitting surface 121 is perpendicular to the axial direction of the outer cylinder 100, that is, perpendicular to most of the light emitted by the light-emitting component 300, and thus most of the light can be introduced into the wall of the inner cone body 120, and then the light can be transmitted to the cavity 500 along the light passage 302 between the inner cone body 120 and the second cylinder body 130, thereby realizing the function of auxiliary lighting in the cavity 500 by the poking card.

[0072] Reference Figure 8 and Fig. 9 As shown, in some embodiments, the reflective surface has a first reflective surface 122 and a second reflective surface 123; the first reflective surface 122 totally reflects the incident light to the second reflective surface 123, and the second reflective surface 123 totally reflects the incident light to the cylinder wall, so that the light is emitted along the axial direction of the outer cylinder 100.

[0073] Specifically, the first reflection surface 122 and the second reflection surface 123 provided in this example can be formed on the wall of the inner cone cylinder 120, which can be further understood as forming two reflection interfaces (interfaces between the wall and the air) in the transparent cylinder wall. When the light enters the cylinder wall from the light-transmitting surface 121, that is, from the optically sparse medium to the optically dense medium, it first reaches the first reflection surface 122. Since the incident angle of the light is greater than the critical angle at the first reflection surface 122, the light is totally reflected at the first reflection surface 122. Subsequently, the totally reflected light reaches the second reflection surface 123. Similar to the first reflection surface 122, the light is totally reflected to the second cylinder 130, and the totally reflected light is parallel to the axis of the first cylinder 110, that is, the light can be emitted along the axial direction of the second cylinder 130 to illuminate the cavity 500. This example only designs the structure of the inner cone cylinder 120, and realizes the function of the light entering the cavity 500 along the cylinder wall of the outer cylinder 100 through two total reflections of the light.

[0074] Reference Figure 8 and Fig. 9 As shown, in some embodiments, the first reflecting surface 122 is located on the outer side surface of the inner conical cylinder 120, and the second reflecting surface 123 is located on the inner side surface of the inner conical cylinder 120. The second reflecting surface 123 is used to totally reflect the incident light into the wall of the second cylinder 130 so that the light is emitted along the axial direction of the second cylinder 130.

[0075] Specifically, according to the tapering direction of the inner cone body 120 and the direction in which the light enters the inner cone body 120 from the light-transmitting surface 121, the light first reaches the outer side surface of the inner cone body 120. To prevent the light from being emitted from the outer side surface, the outer side surface at the corresponding position needs to be designed as an inclined surface that can fully reflect the light, that is, the incident angle is greater than the critical angle. Subsequently, the light is fully reflected to the inner side surface of the inner cone body 120. To prevent the light from being emitted from the inner side surface, it also needs to be designed as an inclined surface that can fully reflect the light, and further designed to enable the outgoing light to be parallel to the structure of the second cylinder 130. It can be specifically designed according to the size of the inner cone body 120 and the installation position of the light-emitting component 300, etc., and is not specifically limited here.

[0076] In some embodiments, the refractive index of the medium inside the inner cone cylinder 120 is greater than the refractive index of the medium outside the card. Specifically, the inner cone cylinder 120 wall is a light-dense medium, and the air outside the wall is a relatively light-sparse medium, so as to achieve one of the conditions that the light can be fully reflected in the cylinder wall. In one example, the material of the outer cylinder 100 is a light-transmitting plastic. The selection of light-transmitting plastic can not only achieve the purpose of light transmission in the cylinder wall, but also reduce the cost of disposable consumables.

[0077] Fig.10 It is a schematic diagram of the outer end surface structure of the second cylinder 130 provided according to an embodiment of the present application.

[0078] Reference Fig.10 As shown, in some embodiments, the outer end surface of the second barrel 130 is formed with a scattering surface 131 to scatter the light into the cavity 500. It can be understood that in order to scatter the light into the cavity 500 and improve the uniformity of the illumination of the cavity 500, the outer end surface (light emitting end surface) of the second barrel 130 can be tilted to scatter the light into the cavity 500. Of course, the outer end surface can also be designed as a concave lens style to scatter the light emitted from the second barrel 130 into the cavity 500. The specific scattering method of the outer end surface on the light is not limited here.

[0079] Reference Figures 1 to 3 As shown, in some embodiments, the light emitting member 300 includes a plurality of lamp beads, and an array of the plurality of lamp beads is disposed on the end surface of the sealing cover 200 to form an annular light source.

[0080] It is understandable that the light emitting member 300 can be a plurality of LED lamp beads, which are arranged in an array on the end face of the sealing cover 200 facing the end face of the outer cylinder 100. In order to avoid the through hole 201 provided in the sealing cover 200, the plurality of LED lamp beads are arranged in an annular shape on the end face of the sealing cover 200, so as to form an annular light source. Most of the light emitted by the LED lamp beads can be emitted along the axial direction of the outer cylinder 100 to enter the cylinder wall of the inner cone cylinder 120 through the light-transmitting surface 121 of the inner cone cylinder 120. In one example, the sealing cover 200 is made of metal. The sealing cover 200 is set to a metal material such as an aluminum alloy material, so that the heat generated by the LED lamp beads can be taken out in time and dissipated into the air to reduce the accumulation of heat at the sealing cover 200, and the airflow generated by the slight leakage at the sealing rubber cap in the sealing cover 200 can further drive the generated heat, so as to avoid the accumulation of a large amount of heat at the sealing cover 200 to burn human tissue or affect the working quality of the instrument close to the sealing cover 200.

[0081] Reference Figure 6 As shown, in some embodiments, a power interface 301 is provided on the outer end surface of the sealing cover 200 to supply power to the lamp beads through the power interface 301 .

[0082] Specifically, a power interface 301 is provided on the end surface of the sealing cover 200 away from the outer tube 100, and the power interface 301 is electrically connected to the above-mentioned multiple LED lamp beads. The power interface 301 can be connected to an external power source to power the lamp beads, so that the multiple array-arranged lamp beads form a ring-shaped light source, and then are introduced into the cavity 500 through the annular cylinder wall of the outer tube 100, so as to achieve sufficient lighting for the cavity 500.

[0083] Fig.11 Schematic diagram of application scenarios of the laparoscope poke card provided according to an embodiment of the present application.

[0084] Reference Fig.11 As shown, during actual surgery, multiple poking cards provided in the above example will be installed on human tissues. The poking cards will illuminate the human tissues (such as the abdominal cavity) at different angles, and at the same time, combined with the illumination light emitted from the lens of the endoscope 400, they will be irradiated into the human tissues together to alleviate the inaccurate color reproduction caused by insufficient illumination caused by a single light source during surgery, as well as insufficient illumination formed around the image.

[0085] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A laparoscope poking card, characterized in that: include: An outer cylinder, comprising a distal end and a proximal end, wherein the distal end is used to enter the cavity; A sealing cover is detachably inserted into the proximal end of the outer tube to seal the outer tube, the sealing cover and the outer tube form a passage for surgical instruments to pass through, and a light-emitting member is provided on one side of the sealing cover facing the distal end of the outer tube; The outer tube is formed with a light passage, and the light emitted by the light emitting member can be transmitted along the light passage to the distal end of the outer tube to illuminate the surgical instrument and thus illuminate the cavity.

2. The laparoscope stamping card according to claim 1, characterized in that: The light passage is formed in the wall of the outer tube; The outer tube is constructed with a light-transmitting surface and a reflective surface, and the light path includes a path in which the light passes through the light-transmitting surface, is totally reflected by the reflective surface, and then is incident on the cavity along the wall of the outer tube.

3. The laparoscope stamping card according to claim 2, characterized in that: The reflecting surface comprises a first reflecting surface and a second reflecting surface; The first reflection surface totally reflects the incident light to the second reflection surface, and the second reflection surface totally reflects the incident light to the cylinder wall, so that the light is emitted along the axial direction of the outer cylinder.

4. The laparoscope stamping card according to claim 3, characterized in that: The outer cylinder comprises a first cylinder body, an inner cone cylinder body and a second cylinder body which are connected in sequence, the first cylinder body is used to connect the sealing cover, the inner cone cylinder body and the second cylinder body form the light passage, and the inner cone cylinder body forms the light-transmitting surface and the reflecting surface.

5. The laparoscope stamping card according to claim 4, characterized in that: The light-transmitting surface is arranged opposite to the light-emitting element and is perpendicular to the axial direction of the second cylinder; The light vertically passes through the light-transmitting surface to enter the wall of the inner cone cylinder.

6. The laparoscope stamping card according to claim 5, characterized in that: The first reflecting surface is located at the outer side surface of the inner conical cylinder, and the second reflecting surface is located at the inner side surface of the inner conical cylinder. The second reflecting surface is used to totally reflect the incident light into the cylinder wall of the second cylinder so that the light is emitted along the axial direction of the second cylinder.

7. The laparoscope stamping card according to claim 4, characterized in that: The refractive index of the medium inside the wall of the inner cone cylinder is greater than the refractive index of the medium outside the poking card.

8. The laparoscope stamping card according to claim 4, characterized in that: A scattering surface is formed on the outer end surface of the second cylinder to scatter the light into the cavity.

9. The laparoscope stamp card according to any one of claims 1 to 8, characterized in that: The light emitting element comprises a plurality of lamp beads, and an array of the plurality of lamp beads is arranged on the end surface of the sealing cover to form an annular light source.

10. The laparoscope stamping card according to claim 9, characterized in that: The outer end surface of the sealing cover is provided with a power interface to supply power to the lamp bead through the power interface.

11. The laparoscope stamp card according to any one of claims 1 to 8, characterized in that: The outer cylinder is made of light-transmitting plastic; The sealing cover is made of metal.

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