Built-in surgical instruments and built-in surgical lighting

Abstract

A surgical instrument and a built-in surgical lighting device, wherein the built-in surgical lighting device comprises: a housing and a light source system; the housing comprises: a first part, the first part defines a receiving cavity, the light source system is received in the receiving cavity; a second part, connected to the first part, the second part defines an adsorption cavity and has an adsorption port connecting the adsorption cavity with the outside; in the housing, at least the first part is a transparent structure suitable for light emission, and along the depth direction of the adsorption cavity, the second part is suitable for being squeezed and deformed to form a negative pressure in the adsorption cavity. This technical solution proposes a new idea for built-in surgical lighting.

Description

Technical Field

[0001] The present invention relates to the technical field of medical instruments, and in particular to a surgical instrument and a built-in surgical lighting device. Background Art

[0002] The invention of the shadowless lamp has brought good news to modern surgery, greatly improving the lighting of modern surgery and making the surgical field of view clearer. However, the shadowless lamp is not actually "shadowless". It only lightens the umbra and makes it less obvious, which is more than enough for most superficial surgeries. However, with the development of surgical technology, more and more surgeries involving deep tissues of the human body and the era of minimally invasive surgery require smaller and smaller incisions, which puts higher requirements on surgical lighting. Therefore, during the operation, it is necessary to frequently adjust the position and focus of the shadowless lamp, which not only requires a dedicated person to be responsible, but also greatly delays the progress of the operation, and it is also difficult to achieve the best lighting effect. Summary of the invention

[0003] The problem to be solved by the present invention is to provide a light source system for a built-in surgical lighting device in order to solve at least one problem existing in the prior art.

[0004] In order to solve the above problems, the present invention provides a built-in surgical lighting device. The built-in surgical lighting device comprises: a housing and a light source system;

[0005] The housing comprises:

[0006] A first part, wherein the first part defines a receiving cavity, and the light source system is received in the receiving cavity;

[0007] A second part connected to the first part, wherein the second part defines an adsorption cavity and has an adsorption port connecting the adsorption cavity and the outside;

[0008] In the shell, at least the first part is a transparent structure suitable for light emission, and along the depth direction of the adsorption cavity, the second part is suitable for being squeezed and deformed to form a negative pressure in the adsorption cavity.

[0009] Optionally, the second portion includes: a deformation section extending along the depth direction, and the inner diameter of the deformation section gradually increases or decreases in a direction from the adsorption port to the inside of the adsorption chamber.

[0010] Optionally, the deformation section is a section, and the length along the depth direction is equal to the depth of the adsorption chamber.

[0011] Optionally, the deformation segment is at least two segments, which are sequentially connected along the depth direction;

[0012] Along the depth direction, two adjacent deformation segments gradually have an included angle.

[0013] Optionally, the deformation segment is at least three segments, and along the depth direction, in a direction from the adsorption port to the inside of the adsorption chamber, the deformation segments with gradually increasing inner diameters and the deformation segments with gradually decreasing inner diameters are alternately distributed.

[0014] Optionally, along the depth direction, in a direction from the adsorption port toward the adsorption chamber, an inner diameter of the deformation section defining the adsorption port gradually decreases.

[0015] Optionally, the adsorption chamber is communicated with the accommodating chamber.

[0016] Optionally, the first part includes:

[0017] A first side wall, which is annular;

[0018] The top wall and the first bottom wall located on both axial sides of the first side wall are connected to the first side wall to define the accommodating cavity. An opening facing the first bottom wall is formed on the top wall, and the opening is connected to the adsorption cavity.

[0019] Optionally, the shell is made of silicone.

[0020] Optionally, the first part and the second part are integrally formed.

[0021] Optionally, the light source system comprises: a base, and a light source circuit and a switch circuit arranged on the base;

[0022] The light source circuit includes a power source and a light source connected together;

[0023] The switch circuit includes a control switch with a voltage and current limiting module, and the control switch is suitable for: controlling the light source circuit to conduct to turn on the light source, and reducing the luminous intensity of the light source through the voltage and current limiting module to reach an acceptable luminous intensity threshold inside the human body.

[0024] Optionally, the light source comprises a cold light source.

[0025] Optionally, the base includes a semiconductor sheet, and the light source circuit and the switch circuit are integrated circuits integrated in the semiconductor sheet.

[0026] Optionally, the light source includes a sheet light source.

[0027] Optionally, the sheet light source is a chip LED.

[0028] Optionally, the control switch includes:

[0029] A first switch, used to generate a first level signal;

[0030] a logic selection module, electrically connected to the first switch, and configured to receive the first level signal to generate a second level signal;

[0031] A second switch, connected to the switch circuit and electrically connected to the logic selection module, for receiving the second level signal to turn on the light source circuit;

[0032] The voltage and current limiting module is arranged between the logic selection module and the second switch, and is suitable for reducing the second level signal to increase the on-resistance of the second switch.

[0033] Optionally, the first switch includes:

[0034] a stationary contact electrically connected to the logic selection module;

[0035] A pressing portion having a moving contact;

[0036] The first switch is suitable for: pressing the pressing portion to make the moving contact and the stationary contact contact to generate the first level signal.

[0037] Optionally, the second switch is a triode switch, comprising a base, a collector and an emitter;

[0038] The base is connected to the logic selection module, and the collector and the emitter are connected to the light source circuit.

[0039] Optionally, the voltage and current limiting module is a resistor.

[0040] Optionally, the light source system further comprises: a shell, the shell defines a receiving portion, the base is received in the receiving portion, and the shell is a transparent structure.

[0041] Optionally, the housing comprises:

[0042] The main body comprises a second side wall in an annular shape, a second bottom wall at one axial end of the second side wall and a first opening at the other axial end, the second bottom wall is formed with a second opening, and the second side wall and the second bottom wall define the receiving portion;

[0043] A cover body, covering the first opening;

[0044] The base has a first surface facing the second opening, and at least the control switch is arranged on the first surface and faces the second opening;

[0045] The first portion has a first bottom wall, and at least the control switch faces the first bottom wall through the second opening.

[0046] Optionally, the power source is arranged on the first surface;

[0047] The base also has a second surface facing the cover, and the light source is arranged on the second surface.

[0048] The present invention provides an internal surgical instrument, which includes: an instrument body;

[0049] Any of the above-mentioned built-in surgical lighting devices is adsorbed onto the instrument body through the shell.

[0050] Optionally, the surgical instrument is a deep retractor, comprising a hook portion, and the shell is adsorbed on the hook portion.

[0051] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0052] The built-in surgical lighting device includes a shell and a light source system. The shell includes a first part and a second part. The accommodating cavity of the first part can be used to accommodate the light source system, and the second part defines an adsorption cavity, wherein at least the first part is a transparent structure. During surgery, the built-in surgical lighting device with a shell can be inserted into the human body through a surgical incision, and the adsorption port of the second part is aligned with the human body's inner membrane near the surgical site, and the second part is squeezed toward the human body's inner membrane. The second part is squeezed and deformed to form a negative pressure in the adsorption cavity, so that the shell is adsorbed on the human body's inner membrane. At this time, the light source system is turned on, and light is emitted through the second part, illuminating the surgical area and providing a perfect surgical field of view.

[0053] The adsorption characteristics of the shell can enable the built-in surgical lighting device to be placed in the human body cavity and maintain a stable setting, providing stable and concentrated light to illuminate the local surgical field, thereby reducing dependence on shadowless lamps and speeding up the progress of the operation. Especially for surgeries involving deep tissues of the human body, the surgical field of view is deep and may be blocked by internal organs of the human body, and the surgeon's head may block the light of the shadowless lamp. In this case, the built-in surgical lighting device can be placed in the human body to form a bright space near the deep tissues and provide good lighting effects. Therefore, this technical solution proposes a new idea for built-in surgical lighting.

[0054] Moreover, this adsorption property does not have any special requirements for the volume of the shell, and the volume of the shell is made small to accommodate surgical lighting with small surgical incisions. During surgery, the small volume of the shell will not cause shadows, avoiding affecting the doctor's line of sight, and the doctor can accurately locate the surgical site.

[0055] More importantly, in field hospitals or battlefield surgeries, when lighting equipment is insufficient or there is no lighting equipment on the battlefield (especially at night), the built-in surgical lighting device is small in size and easy to carry, which can perfectly meet the surgical needs of soldiers. More importantly, during surgery, the built-in surgical lighting device is placed in the human body, and the light is not easily exposed to the enemy, which plays a very important military and strategic role.

[0056] Furthermore, the light source system may include: a base and a light source circuit and a switch circuit integrated on the base, the light source circuit including a light source and a power supply, the switch circuit including a control switch having a voltage limiting and current limiting module, and controlling the voltage limiting and current limiting module to reduce the luminous intensity of the light source to reach an acceptable luminous intensity threshold inside the human body. How to ensure that the light emitted by the light source does not burn the internal organs of the human body and reasonably control the luminous intensity of the light source is a necessary factor for the built-in surgical lighting device to be placed inside the human body. Therefore, the control switch of the present technical solution includes a voltage limiting and current limiting module to reduce the power of the light source, reduce its luminous intensity, and avoid light burns to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 is an exploded view of a built-in surgical lighting device according to a specific embodiment of the present invention;

[0058] Figure 2 is a cross-sectional view of a built-in surgical lighting device according to a specific embodiment of the present invention, wherein the cross section is a plane passing through the center line of the housing;

[0059] Figure 3 The specific embodiment of the present invention has Figure 1 A cross-sectional view of a surgical instrument with a built-in surgical lighting device;

[0060] Figure 4 yes Figure 2 A cross-sectional view of another embodiment of the built-in surgical lighting device;

[0061] Figure 5 yes Figure 1 The circuit diagram of the light source system in the built-in surgical lighting device is shown. DETAILED DESCRIPTION

[0062] In order to solve the problems existing in the prior art, the present invention provides a built-in surgical lighting device. During surgery, the built-in surgical lighting device can be placed in the human body to provide surgical lighting.

[0063] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0064] Reference Figure 1 and Figure 2 The built-in surgical lighting device may include: a housing 1 and a light source system 2 accommodated in the housing 1. The housing 1 may include:

[0065] A first part 11, the first part defines a receiving cavity 1a, and the light source system 2 is received in the receiving cavity 1a;

[0066] The second part 12 is connected to the first part 11, and the second part 12 defines an adsorption chamber 12a and has an adsorption port 12b connecting the adsorption chamber 12a and the outside;

[0067] In the housing 1, at least the first portion 11 is a transparent structure suitable for light emission, and along the depth direction A of the adsorption chamber 12a, the second portion 12 is suitable for being squeezed and deformed to form a negative pressure in the adsorption chamber 12a.

[0068] During surgery, the built-in surgical lighting device with the housing 1 can be placed into the human body through the surgical incision, and the adsorption port 12b of the second part 12 is aligned with the human body inner membrane near the surgical site, and the second part 12 is squeezed toward the human body inner membrane. The second part 12 is squeezed and deformed to form a negative pressure in the adsorption cavity 12a, so that the housing 1 is adsorbed on the human body inner membrane. At this time, the light source system 2 is turned on, and the light is emitted through the second part 12, illuminating the surgical area and providing a perfect surgical field of view. After surgery, the housing 1 can be slid along the human body inner membrane, or the second part 12 can be squeezed so that air can enter the adsorption cavity 12a from the adsorption port 12b, eliminating the negative pressure in the adsorption cavity 12a, and then the built-in surgical lighting device can be easily removed.

[0069] The adsorption characteristics of the shell 1 can enable the built-in surgical lighting device to be placed in the human body cavity and maintain a stable setting, providing stable and concentrated light to illuminate the local surgical field, thereby reducing dependence on shadowless lamps and speeding up the progress of the operation. Especially for surgeries involving deep tissues of the human body, the surgical field of view is deep and may be blocked by internal organs of the human body, and the surgeon's head may block the light of the shadowless lamp. In this case, the built-in surgical lighting device can be placed in the human body to form a bright space near the deep tissues and provide good lighting effects. Therefore, this technical solution proposes a new idea for built-in surgical lighting.

[0070] Moreover, this adsorption property has no special requirements on the volume of the housing 1, and the housing 1 is made small to adapt to the surgical lighting with a small surgical incision. During the operation, the small size of the housing 1 will not cause shadows, avoid affecting the doctor's line of sight, and the doctor can accurately locate the surgical site.

[0071] More importantly, in field hospitals or battlefield surgeries, when lighting equipment is insufficient or there is no lighting equipment on the battlefield (especially at night), the built-in surgical lighting device is small in size and easy to carry, which can perfectly meet the surgical needs of soldiers. More importantly, during surgery, the built-in surgical lighting device is placed in the human body, and the light is not easily exposed to the enemy, which plays a very important military and strategic role.

[0072] The incredible effects brought about by the built-in surgical lighting device of this technical solution are illustrated below with examples.

[0073] In the current radical resection of gastric cancer, it is necessary to dissect the tissues and blood vessels around the cardia, especially to separate the gastric fundus from the spleen. This part is located at the highest and deepest part of the abdominal cavity, close to the diaphragm, and in most patients, the gastric fundus and spleen are densely adhered, and it is difficult to achieve good lighting effects with a shadowless lamp. Therefore, it is very easy to cause spleen tearing and blood vessel damage during surgery here, resulting in unnecessary heavy bleeding during surgery, and even the inability to stop bleeding and the need for combined splenectomy, which increases the difficulty of surgery and causes unnecessary damage to patients. To solve this problem, a built-in surgical lighting device is used, and the shell 1 can be adsorbed on the peritoneum to provide concentrated and good lighting effects for the deepest part of the abdominal cavity, which can reduce the risk of spleen tearing and blood vessel damage and reduce the difficulty of surgery.

[0074] For example, during surgery for low rectal cancer, the pelvis sizes of different patients are different, especially for male patients with narrow pelvises, or some patients with large and low tumors, which leaves the operator with extremely limited operating space, or even only a gap for operation. At this time, the illumination of the shadowless lamp is often blocked by the operator's head and cannot be illuminated into the surgical field of view, causing the operator to operate in almost "darkness", which not only increases the difficulty of the operation, but also greatly increases the risk of the operation. In severe cases, there will be massive bleeding before the sacrum, prostate damage in men leading to continuous bleeding, and vaginal damage and recto-vaginal leakage in women, all of which are serious complications that endanger the patient's life. For this problem, the built-in surgical lighting device is small in size and can be adsorbed on the pelvic lining using the shell 1, providing concentrated and precise lighting in a small space, solving the problem of high surgical difficulty caused by the patient's small pelvis or narrow surgical operation space, reducing surgical risks, and avoiding surgery that endangers the patient's life.

[0075] In addition to being directly placed in the human body, the built-in surgical lighting device of the present technical solution can also be used in conjunction with built-in surgical instruments. Figure 3 The built-in surgical instrument may be a deep retractor 3 , and the deep retractor 3 may include a hook portion 30 , and the built-in surgical lighting device is adsorbed on the hook portion 30 .

[0076] During the operation, the deep retractor 3 pulls the incision through the hook portion 30 to fully expose the surgical field of view, making it easier for the doctor to perform the operation. In this process, the built-in surgical lighting device is adsorbed on the curved hook portion 30 through the shell 1, penetrates into the human body, and can serve the purpose of intraoperative lighting. According to the size of the hook portion 30, two, one or other numbers of built-in surgical lighting devices can be arranged on it. In addition to this deep retractor 3, other built-in surgical instruments may include: an instrument body; a built-in surgical lighting device, which is adsorbed on the instrument body through the shell. A built-in surgical instrument is a surgical instrument that can be inserted into the human body during surgery.

[0077] The second part 12 may include: a deformation section extending along the depth direction A, and the inner diameter of the deformation section gradually increases or decreases in the direction from the adsorption port 12b to the inside of the adsorption chamber 12a. The gradual increase or decrease here can be: along one direction A, the inner diameter of the deformation section either gradually increases or gradually decreases, so that the deformation section is in the shape of a truncated cone.

[0078] For example, along the depth direction A of the adsorption chamber 12a, the second part 12 includes three deformation segments 121, 122, and 123 connected in sequence. The three deformation segments 121, 122, and 123 are connected together to jointly define the adsorption chamber 12a. Each deformation segment is in the shape of a truncated cone. Along the depth direction A of the adsorption chamber 12a, the deformation segments 121, 122, and 123 are squeezed and deformed toward the first part 11, and the axial length gradually decreases to compress the space of the adsorption chamber 12a, discharge the air in the adsorption chamber 12a, and form a negative pressure. Compared with a cylindrical shape, the truncated cone-shaped deformation segments 121, 122, and 123 are more easily deformed, and are less laborious to use, more labor-saving, and more convenient.

[0079] Along the depth direction A, there is an angle between two adjacent deformation segments, such as α1 between deformation segments 121 and 122, and α2 between deformation segments 122 and 123. In this way, the intersection of two adjacent deformation segments thus shares one end. The intersection position provides an area with less stress, and when the second part 12 is squeezed along the depth direction A, the two adjacent deformation segments are more likely to deform at the intersection position, which reduces the difficulty of intraoperative installation.

[0080] Furthermore, along the depth direction A, in the direction from the adsorption port 12b to the inside of the adsorption chamber 12a, the deformation segments with gradually increasing inner diameters and the deformation segments with gradually decreasing inner diameters are alternately distributed. For example, in the direction from the adsorption port 12b to the inside of the adsorption chamber 12a, the inner diameter of the deformation segment 121 gradually decreases, the inner diameter of the deformation segment 122 gradually increases, and the inner diameter of the deformation segment 123 gradually decreases. Therefore, the second part 12 is in the shape of a bellows, and when it is squeezed along the depth direction A, all the deformation segments fold together. In this structural form, when extruded and deformed, all the deformation segments will not interfere with each other, and it is very easy to deform at the intersection.

[0081] Among the three deformation sections, the deformation section 121 defines the suction port 12b. From the suction port 12b to the inside of the suction chamber 12a, the inner diameter of the deformation section 121 gradually decreases, and the deformation section 121 is in a trumpet shape, and the suction port 12b formed is a trumpet mouth. When squeezed, the suction port 12b with a larger diameter is more conducive to exhausting air to the outside, which facilitates installation during surgery.

[0082] The second part 12 of the technical solution includes three deformation sections 121, 122, and 123. In another variation, the deformation section can be one section, and the length along the depth direction is equal to the depth of the adsorption chamber. The second part can only include one deformation section. Or, in another variation, refer to Figure 4 The deformation section 120' may be two sections. Alternatively, the deformation section may be three or more sections. A larger number of deformation sections may define a larger volume adsorption chamber, so that more air is expelled by squeezing, the stronger the adsorption force is, and the better the installation stability of the built-in surgical lighting device is.

[0083] For the housing 1, the material selected to achieve such deformation may be silicone, which is easy to undergo elastic deformation.

[0084] Reference Figure 1 and Figure 2 For the housing 1, the adsorption chamber 12a is connected with the accommodating chamber 1a, so that the light source system 2 can be loaded into the accommodating chamber 1a through the adsorption chamber 12a from the side of the adsorption port 12b. This improves the feasibility and convenience of product assembly.

[0085] The first part 11 may include: an annular side wall (hereinafter referred to as the first side wall) 110; a top wall 111 and a bottom wall (hereinafter referred to as the first bottom wall) 112 located on both axial sides of the first side wall 110, both of which are connected to the first side wall 110, thereby defining a receiving chamber 1a, wherein the top wall 111 is connected to the second part 12. An opening 11a is formed on the top wall 111, and the opening is connected to the 11a adsorption chamber 12a. This forms a receiving chamber 1a with an opening 11a at one end, and the top wall 111 and the first bottom wall 112 together limit the light source system 2, effectively preventing the light source system 2 from escaping from the opening.

[0086] In this case, the first side wall 110 and the first bottom wall 112 can both be transparent structures, made of transparent materials. For example, the transparent material can be silicone. Therefore, there is such a possibility that the first part 11 and the second part 12 are integrally formed and can be made of transparent silicone.

[0087] By utilizing the adsorption characteristics of the housing 1 , the requirement of placing the built-in surgical lighting device on the human body can be met. During the operation, the light source system 2 is relied upon to meet the lighting requirements.

[0088] Reference Figure 1 , Figure 2 and Figure 5 The light source system 2 may include: a base 21, and a light source circuit and a switch circuit arranged on the base 21; the light source circuit includes a power supply 22 and a light source 23 connected together; the switch circuit includes a control switch 24 with a voltage limiting and current limiting module 240, and the control switch 24 is suitable for: controlling the light source circuit to be turned on to turn on the light source 23, and reducing the luminous intensity of the light source 23 through the voltage limiting and current limiting module 240 to reach an acceptable luminous intensity threshold inside the human body.

[0089] The acceptable luminous intensity threshold inside the human body may refer to the minimum luminous intensity extreme value or extreme value range that the internal organs of the human body can withstand. At or below the luminous intensity threshold, the internal organs of the human body will not be burned, and when the luminous intensity threshold is exceeded, the internal organs of the human body are at risk of being burned. Therefore, reasonable control of the luminous intensity of the light source 23 is a necessary factor for the built-in surgical lighting device of the present technical solution to be placed inside the human body. However, the power of the current light sources is relatively large, and the light may burn the internal organs of the human body. Therefore, the control switch of the present technical solution includes a voltage and current limiting module to reduce the power of the light source 23 and reduce its luminous intensity.

[0090] The light source system 2 is contained in the housing 1a of the housing 1 to maintain the integrity and reliability of the structure. During the operation, the housing 1 is placed in the human body, and the control switch 24 is operated to conduct the light source circuit to turn on the light source 23, which can provide a suitable light intensity to meet the lighting requirements.

[0091] To protect the internal organs of the human body, the light source 23 may include a cold light source. The cold light source does not generate infrared rays, which can avoid infrared radiation to the human body and damage to the organs. The cold light source may include an LED lamp, which has a pure light color, can generate stable white light, is energy-saving and has a long service life.

[0092] In order to achieve the purpose of small volume of built-in surgical lighting device, the base 21 may include semiconductor sheet, and the light source circuit and the switch circuit are integrated circuits integrated in the semiconductor sheet. The base 21 may be made of semiconductor sheet, and the light source circuit and the switch circuit are integrated circuits formed on the surface of the semiconductor sheet using semiconductor technology. Integrated circuits have miniaturization characteristics and can greatly reduce the size of the base 21. Based on this, the technical solution proposes a design idea of ​​integrated circuits, which can achieve the expectation of reducing the size of the light source system 2.

[0093] The light source 23 may include a sheet light source, which is small in size and can meet the purpose of miniaturization of the built-in surgical lighting device. The sheet light may be a patch LED, which has the characteristics of being small, thin, and lightweight, and can meet the diverse needs of the built-in surgical lighting device for illumination and small size.

[0094] The control switch 24 may include: a first switch 241, configured to generate a first level signal;

[0095] A logic selection module 243, electrically connected to the first switch 241, configured to receive a first level signal to generate a second level signal;

[0096] The second switch 242 is connected to the switch circuit and electrically connected to the logic selection module 243, and is used to receive the second level signal to turn on the light source circuit;

[0097] The voltage and current limiting module 240 is disposed between the logic selection module 243 and the second switch 242 . The voltage and current limiting module 240 is adapted to reduce the second level signal to increase the on-resistance of the second switch 242 , thereby achieving the purpose of voltage and current limiting of the light source 23 .

[0098] The first switch 241 plays a triggering role, and the first level signal can be a low level or a high level, which is used as a trigger signal to turn on the light source 23. The trigger signal can trigger the logic selection module 243 to generate a second level signal, thereby forming a passage for the second switch 242.

[0099] The first switch 241 includes: a static contact 24a electrically connected to the logic selection module 243;

[0100] A pressing portion 244 having a movable contact 24b;

[0101] The first switch 241 is adapted to: press the pressing portion 244 to make the moving contact 24b and the stationary contact 24a contact to generate a first level signal. When the light source system 2 is placed in the accommodating cavity 1a, the pressing portion 244 can be arranged opposite to the first bottom wall 112 of the first part 11, so that the pressing portion 244 can be easily pressed across the first bottom wall 112 to start the light source 23, which is convenient to operate.

[0102] The second switch 242 may be a triode switch, including a base B, a collector C and an emitter E; the base B is connected to the logic selection module 243, and the collector C and the emitter E are connected to the light source circuit. Figure 5 The second switch 242 is an NPN transistor switch, so when the second level signal is at a high level, the transistor switch can be turned on, the collector C and the emitter E are connected, the light source circuit is turned on, and the power supply 23 is turned on. On the contrary, in an alternative technical solution, when the second switch selects a PNP transistor switch, when the second level signal is at a low level, the transistor switch can be turned on, so that the power supply is turned on.

[0103] The voltage and current limiting module 240 can reduce the second level signal, so that the channel area that the transistor switch can open is narrow, and the resistance of the transistor switch is large, thereby reducing the power of the light source 23, and finally achieving the purpose of reducing the luminous intensity. The voltage and current limiting module 240 can select a resistor to consume electrical energy to reduce the second level signal.

[0104] Reference Figure 1 and Figure 2 Combined with Figure 5 The light source system 2 may further include: a housing 25, the housing 25 defines a receiving portion 25a, the base 21, the light source circuit and the switch circuit may be received in the receiving portion 25a, and the housing 25 is a transparent structure. In this way, the light source system forms an integrated module, and during assembly, the housing 25 including the base 21, the light source circuit and the switch circuit is loaded into the receiving cavity 1a. The housing 25 is a transparent structure, allowing the light source 23 to emit light outward to achieve the purpose of lighting.

[0105] The housing 25 may include:

[0106] The body portion 250 includes an annular side wall (hereinafter referred to as the second side wall) 251, a bottom wall (hereinafter referred to as the second bottom wall) 252 located at one axial end of the second side wall 251 and a first opening 25b at the other axial end, the second bottom wall 252 is formed with a second opening 25c, and the second side wall 251 and the second bottom wall 252 define a receiving portion 25a;

[0107] A cover body 253, covering the first opening 25b;

[0108] The base 21 has a first surface 211 facing the second opening 25 c , and at least the control switch 24 is arranged on the first surface 211 and faces the second opening 25 c .

[0109] In the present technical solution, the housing 25 includes two independent parts, the main body 250 and the cover 253, which is conducive to product assembly and compact structure of the light source system 2. In this case, the light source system 2 is placed in the accommodating cavity 1a of the housing 1, and the cover 253 faces the adsorption cavity 12a, and the second bottom wall 252 of the main body 250 faces the first bottom wall 112 of the housing 1. In this way, the control switch 24, especially the first switch 241, directly faces the first bottom wall 112 of the housing 1 through the second opening 25c, so the first switch 241 can be pressed across the housing 1 to generate a first level signal.

[0110] The first surface 211 of the base 21 faces the first bottom wall 112 of the housing 1, and the first bottom wall 112 can protect the control circuit 24 from the humid environment in the human body. Furthermore, the cover 251 is provided on the first opening 25b to prevent liquids such as water from affecting the normal operation of the light source circuit and the control circuit 24, thereby ensuring that the light source system 2 maintains stable operation.

[0111] Power supply 22 (refer to Figure 5 ) can be arranged on the first surface 211, and the first bottom wall 112 of the housing 1 can protect the power source 22. The base 21 also has a second surface 212 facing the cover 253, and the light source 23 is arranged on the second surface 212. Therefore, the cover 253 and the main body 250 are both transparent structures.

[0112] The cover 253 has a locking foot 254 extending toward the second bottom wall 252 of the main body 250 . The cover 253 can be locked in the receiving portion 25 a through the locking foot 254 .

[0113] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A built-in surgical lighting device, characterized in that: include: Housing and lighting system; The housing comprises: A first part, wherein the first part defines a receiving cavity, and the light source system is received in the receiving cavity; A second part connected to the first part, wherein the second part defines an adsorption cavity and has an adsorption port connecting the adsorption cavity and the outside; In the shell, at least the first part is a transparent structure suitable for light emission, and along the depth direction of the adsorption chamber, the second part is suitable for being squeezed and deformed to form a negative pressure in the adsorption chamber; The adsorption chamber is communicated with the accommodating chamber; The first part includes: a first side wall; a top wall and a first bottom wall located on both sides of the first side wall in the axial direction, the top wall and the first bottom wall are connected to the first side wall to define the accommodating cavity, and an opening facing the first bottom wall is formed on the top wall, and the opening is connected to the adsorption cavity; The light source system comprises: a housing, the housing defines a receiving portion; the housing comprises: a main body and a cover; the main body comprises: a second side wall, a second bottom wall located at one axial end of the second side wall and a first opening at the other axial end; the second bottom wall is formed with a second opening, the second side wall and the second bottom wall define the receiving portion; the cover is arranged to cover the first opening; The second bottom wall faces the first bottom wall, and the top wall of the first part and the first bottom wall together limit the light source system, effectively preventing the light source system from jumping out of the opening; The light source system is turned on, and the light source system generates light and emits light through the second part.

2. The built-in surgical lighting device according to claim 1, characterized in that: The second part includes: a deformation section extending along the depth direction, and the inner diameter of the deformation section gradually increases or decreases in the direction from the adsorption port to the inside of the adsorption chamber.

3. The built-in surgical lighting device according to claim 2, characterized in that: The deformation section is a section, and the length along the depth direction is equal to the depth of the adsorption chamber.

4. The built-in surgical lighting device according to claim 2, characterized in that: The deformation section is at least two sections, which are connected in sequence along the depth direction; Along the depth direction, there is an angle between two adjacent deformation segments.

5. The built-in surgical lighting device according to claim 2, characterized in that: The deformation sections are at least three sections, and along the depth direction, in the direction from the adsorption port to the inside of the adsorption chamber, the deformation sections with gradually increasing inner diameters and the deformation sections with gradually decreasing inner diameters are alternately distributed.

6. The built-in surgical lighting device according to any one of claims 2 to 5, characterized in that: Along the depth direction, in a direction from the adsorption port toward the inside of the adsorption chamber, the inner diameter of the deformation section defining the adsorption port gradually decreases.

7. The built-in surgical lighting device according to claim 1, characterized in that: The material of the shell is silica gel.

8. The built-in surgical lighting device according to claim 1, characterized in that: The light source system comprises: a base, and a light source circuit and a switch circuit arranged on the base; The light source circuit includes a power source and a light source connected together; The switch circuit includes a control switch with a voltage and current limiting module, and the control switch is suitable for: controlling the light source circuit to conduct to turn on the light source, and reducing the luminous intensity of the light source through the voltage and current limiting module to reach an acceptable luminous intensity threshold inside the human body.

9. The built-in surgical lighting device according to claim 8, characterized in that: The light source includes a cold light source.

10. The built-in surgical lighting device according to claim 8, characterized in that: The base includes a semiconductor sheet, and the light source circuit and the switch circuit are integrated circuits integrated in the semiconductor sheet.

11. The built-in surgical lighting device according to claim 8, characterized in that: The light source includes a sheet light source.

12. The built-in surgical lighting device according to claim 11, characterized in that: The sheet light source is a SMD LED.

13. The built-in surgical lighting device according to claim 8, characterized in that: The control switch comprises: A first switch, used to generate a first level signal; a logic selection module, electrically connected to the first switch, and configured to receive the first level signal to generate a second level signal; a second switch, connected to the light source circuit and electrically connected to the logic selection module, and configured to receive the second level signal to turn on the light source circuit; The voltage and current limiting module is arranged between the logic selection module and the second switch, and is suitable for reducing the second level signal to increase the on-resistance of the second switch.

14. The built-in surgical lighting device according to claim 13, characterized in that: The first switch comprises: a stationary contact electrically connected to the logic selection module; A pressing portion having a moving contact; The first switch is suitable for: pressing the pressing portion to make the moving contact and the stationary contact contact to generate the first level signal.

15. The built-in surgical lighting device according to claim 13, characterized in that: The second switch is a triode switch, comprising a base, a collector and an emitter; The base is connected to the logic selection module, and the collector and the emitter are connected to the light source circuit.

16. The built-in surgical lighting device according to claim 13, characterized in that: The voltage and current limiting module is a resistor.

17. The built-in surgical lighting device according to claim 8, characterized in that: The base is accommodated in the accommodation portion, and the shell is a transparent structure.

18. The built-in surgical lighting device according to claim 17, characterized in that: The base has a first surface facing the second opening, and at least the control switch is arranged on the first surface and faces the second opening; At least the control switch faces the first bottom wall through the second opening.

19. The built-in surgical lighting device according to claim 18, characterized in that: The power source is arranged on the first surface; The base also has a second surface facing the cover, and the light source is arranged on the second surface.

20. An internal surgical instrument, characterized in that: include: The device itself; The built-in surgical lighting device described in any one of claims 1-19 is adsorbed to the instrument body through the shell.

21. The internal surgical instrument according to claim 20, characterized in that: The surgical instrument is a deep retractor, comprising a hook portion, and the shell is adsorbed on the hook portion.

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