CN211484475U - Lens fixing device for endoscopic surgery - Google Patents

Abstract

The utility model relates to a lens fixing device for endoscopic surgery, which comprises an adjustable support frame, wherein the adjustable support frame is provided with a clamping part and an installation part, the clamping part is used for detachably connecting and fixing an endoscopic lens, the installation part is used for detachably connecting an operating bed, and the adjustable support frame is used for supporting the endoscopic lens and adjusting the position of the endoscopic lens; the utility model provides a camera lens fixing device for laparoscopic surgery, compact structure not only can make things convenient for, stable fixed lens, and it is convenient to dismantle moreover to have a plurality of degrees of freedom, the position of adjusting lens that can be convenient, in order to satisfy the imaging demand, thereby can effectively solve the not enough that prior art exists.

Description

Lens fixing device for endoscopic surgery

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to camera lens fixing device for laparoscopic surgery.

Background

Laparoscopic surgery is a newly developed minimally invasive method and is a necessary trend for the development of future surgical methods. With the rapid advance of the industrial manufacturing technology, the fusion of related subjects lays a firm foundation for the development of new technology and new method, and the more and more skillful operation of doctors makes many of the past open operations replaced by the intracavitary operations, thereby not only greatly increasing the operation selection opportunities, but also making the occupied proportion of the endoscopic operations larger and larger.

The laparoscopic surgery (usually laparoscopic surgery) is a surgery performed by using an endoscope and related instruments, and specifically, a cold light source is used for providing illumination, an endoscope lens (with the diameter of 3-10 mm) is inserted into an abdominal cavity, and an image shot by the laparoscopic lens is transmitted to a post-stage signal processing system through an optical fiber by using a digital camera shooting technology and is displayed on a special monitor in real time; the doctor analyzes and judges the state of an illness of the patient through images of different angles of the organs of the patient displayed on the monitor screen, and performs an operation by using corresponding endoscope instruments; the camera system is a key device for endoscopic surgery, and the existing camera system generally comprises a camera host, an endoscopic lens, a cold light source, a monitor and the like, as shown in fig. 1, the endoscopic lens comprises a lens with a rod-shaped structure, a lens handle arranged at one end of the lens and an optical fiber connector used for connecting an optical fiber line, and the end part of the lens handle is connected with the camera host through the lens line.

In the prior art, a doctor needs to separately arrange to hold a lens by hands in the process of performing an endoscopic surgery so as to ensure that the lens has a stable and clear visual field; by adopting the mode, not only one doctor is occupied independently, which causes waste of human resources, but also the time for holding the lens by the doctor is longer, the time of some endoscopic surgeries exceeds 5 hours, and the burden of the doctor is greatly increased; in addition, at the in-process of hand camera lens, the quality of image can receive doctor's influence, if when doctor's hand is soft, the hand is trembled, is rocked, the image can appear rocking, seriously influences the clear image of looking over of operation doctor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to improve the not enough that exists among the prior art, provide a camera lens fixing device for laparoscopic surgery, compact structure not only can make things convenient for, stable fixed lens, and it is convenient to dismantle moreover to have a plurality of degrees of freedom, the position of adjusting the camera lens that can be convenient, in order to satisfy the formation of image demand.

The utility model adopts the technical proposal that:

the utility model provides a camera lens fixing device for laparoscopic surgery, includes adjustable support frame, adjustable support frame is provided with clamping part and installation department, the clamping part is used for detachable to connect and fixes the laparoscopic lens, the installation department is used for detachable to connect the operation table, adjustable support frame is used for supporting the laparoscopic lens and adjusts the position of laparoscopic lens. The fixing device can conveniently realize the fixing and the dismounting of the adjustable supporting frame by utilizing the mounting part, the clamping part can be detachably connected with the endoscope lens, the fixing of the endoscope lens is realized, and the adjustable supporting frame can be adjusted according to the requirements, so that the position of the endoscope lens is effectively adjusted, and the requirements of various visual fields in the endoscope operation are met; in the endoscopic surgery, the fixing device can conveniently and stably support and fix the lens without being held by hands of a special doctor, thereby effectively solving the defects in the prior art.

Preferably, the adjustable support frame comprises at least one movable connector, and the movable connector is used for adjusting the position of the clamping part. So that the user can flexibly set the orientation of the clamping part according to the actual requirement.

Preferably, the adjustable support frame comprises a first support frame, the installation part is fixed at one end of the first support frame, the clamping part is connected with the first support frame through a movable connector, and the movable connector is used for adjusting the position of the clamping part. Through setting up a swing joint head for the clamping part has the degree of freedom rotatory and every single move relative to first support frame, thereby is favorable to the user to adjust the position of clamping part according to actual demand is nimble.

In one scheme, the clamping part is a clamp, and the clamp is used for clamping a lens handle. The clamp is used for clamping the lens handle of the cavity mirror lens, so that the clamp and the cavity mirror lens can be conveniently connected into a whole, and the cavity mirror lens can be supported and fixed.

In another scheme, the clamping part comprises a restraining barrel with a barrel-shaped structure, and the restraining barrel is used for penetrating through the lens and restraining the lens. When the cavity mirror lens is installed, one end of the lens penetrates from one end of the constraint cylinder, penetrates out from one end of the constraint cylinder, and is inserted into the abdominal cavity, the lens handle can be just clamped at one end of the constraint cylinder, so that the cavity mirror lens is constrained and fixed.

In order to fix the lens more firmly and avoid the lens from shaking relative to the restraint cylinder, the lens fixing device further comprises a locking ring, wherein the locking ring is arranged at one end of the restraint cylinder, the locking ring has elasticity, and the inner diameter of the locking ring is smaller than or equal to the outer diameter of the lens. In this scheme, the one end of a restraint section of thick bamboo is provided with the lock ring, when fixed chamber mirror camera lens, passes the lock ring with the camera lens, utilizes the elasticity of lock ring to compress tightly the camera lens to realize the zonulae occludens of camera lens and a restraint section of thick bamboo, can effectively avoid the camera lens to rock for a restraint section of thick bamboo.

Preferably, the locking ring is a rubber ring or a silica gel ring.

In order to adapt to the endoscope lens, a notch for clamping the optical fiber connector is further formed in one end of the restraining barrel. After the cavity mirror lens is fixed on the constraint cylinder, the optical fiber connector of the cavity mirror lens can be just clamped in the notch, so that the cavity mirror lens can be better constrained, the cavity mirror lens can be effectively prevented from rotating relative to the constraint cylinder, and the cavity mirror lens can be more stably fixed.

Furthermore, the adjustable support frame still includes the second support frame, the one end of second support frame through a swing joint head with first support frame links to each other, the clamping part through another swing joint head with the second support frame links to each other, the swing joint head is used for adjusting the position of clamping part. Through setting up two swing joint heads, can effectively increase the degree of freedom of clamping part, more be favorable to the user to adjust the position of clamping part according to actual demand is nimble.

Preferably, the first support frame and/or the second support frame are rod-shaped structures.

In order to increase the adjustment range, further, the first support frame and/or the second support frame are/is a telescopic frame.

Preferably, the movable connector comprises a first connecting part, a second connecting part and a locking pin, the first connecting part is provided with a ball head, one end of the second connecting part is provided with a groove, the ball head is arranged in the groove, and the first connecting part and the second connecting part form a ball hinge; the second connecting portion are provided with lockholes, the lockholes with the recess is linked together, the lockholes are provided with the internal thread, the fitting pin be provided with the external screw thread of internal thread looks adaptation, the fitting pin be used for locking the bulb and for the bulb unblock. Utilize the ball to articulate, the regulation second connecting portion that can be convenient are for the position of first connecting portion, and utilize the locking or unblock bulb that the fitting pin can be convenient, under the lock state, can prevent effectively that the second connecting portion from moving for first connecting portion to for cavity mirror camera lens provides stable support, under the unblock state, the regulation second connecting portion that the user can be convenient are for all-round regulation such as position, every single move of first connecting portion.

In one scheme, the installation part is a fixing clamp, and the fixing clamp is used for clamping the operating table. Like a bed stop, a bed beam, a bed frame and the like which clamp the operating bed, the adjustable support frame can be connected with the operating bed into a whole, so that the adjustable support frame is fixed, and the force is borne conveniently.

In another scheme, the installation department includes at least one installation body, the installation body is fixed in adjustable support frame, the installation body is provided with draw-in groove and chucking round pin, one side of draw-in groove is provided with the screw hole, the chucking round pin is provided with the external screw thread, and in screw hole screw thread pair, the chucking round pin is used for locking the part of card at the draw-in groove. The component can be a bed stop, a bed beam, a bed frame and the like of the operating bed so as to realize the detachable connection of the installation part and the operating bed.

Furthermore, the installation body is further provided with a through hole for connecting the first support frame, a threaded hole communicated with the through hole and an adjusting pin arranged in the threaded hole, wherein the adjusting pin is used for locking/loosening the first support frame arranged in the through hole. Through rotating the adjusting pin, can lock or loosen and set up the first support frame in the through-hole, both convenient to detach can effectively adjust the height of first support frame again.

Compared with the prior art, use the utility model provides a pair of a camera lens fixing device for laparoscopic surgery has following beneficial effect:

1. the fixing device is compact in structure, can conveniently and stably fix the endoscope lens without being held by hands of a special doctor, can effectively overcome the defects in the prior art, and is particularly suitable for laparoscopic surgery.

2. This fixing device dismantles the convenience to have a plurality of degrees of freedom, the position of regulation camera lens that can be convenient can effectively satisfy the demand of chamber mirror camera lens to various positions.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a conventional cavity mirror lens.

Fig. 2 is a schematic structural view of a lens fixing device for endoscopic surgery provided in embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of a restraining barrel in the lens fixing device for endoscopic surgery provided in embodiment 1 of the present invention.

Fig. 4 is a schematic structural view of the lens fixing device for endoscopic surgery provided in embodiment 1 after fixing the endoscopic lens.

Fig. 5 is a partially enlarged schematic view I of fig. 2.

Fig. 6 is a view a-a of fig. 2.

Fig. 7 is a schematic structural view of a lens fixing device for endoscopic surgery provided in embodiment 2 of the present invention.

Fig. 8 is a partial cross-sectional view of a restraining barrel in the lens fixing device for endoscopic surgery provided in embodiment 1 of the present invention.

Description of the drawings

An endoscope lens 100, a lens 101, a lens handle 102, an optical fiber connector 103,

An adjustable supporting frame 200, a first supporting frame 201, a second supporting frame 202,

A movable connector 300, a first connecting part 301, a second connecting part 302, a locking pin 303, a ball head 304,

A clamping portion 400, a restraining sleeve 401, a locking ring 402, a notch 403, a tightening segment 404, an annular groove 405,

Mounting part 500, mounting body 501, clamping groove 502, clamping pin 503, through hole 504, adjusting pin 505,

A bed frame 601.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 6, the present embodiment provides a lens fixing device for an endoscopic surgery, including an adjustable supporting frame 200, the adjustable supporting frame 200 is provided with a clamping portion 400 and a mounting portion 500, the clamping portion 400 is used for detachably connecting and fixing an endoscopic lens 100, the mounting portion 500 is used for detachably connecting an operating table, and the adjustable supporting frame 200 is used for supporting the endoscopic lens and adjusting the orientation of the endoscopic lens.

In the fixing device provided by the embodiment, the mounting part 500 can be used for conveniently fixing and detaching the adjustable support frame 200, the clamping part 400 can be used for detachably connecting the endoscope lens and fixing the endoscope lens, and the adjustable support frame 200 can be adjusted according to requirements, so that the direction of the endoscope lens can be effectively adjusted to meet the requirements of various visual fields in the endoscope operation; in the endoscopic surgery, the fixing device can conveniently and stably support and fix the lens 101 without being held by hands of a special doctor, thereby effectively solving the defects in the prior art.

It is understood that the adjustable support stand 200 may be an adjustable stand commonly used in the art; preferably, in this embodiment, the adjustable supporting frame 200 includes at least one movable connector 300, and the movable connector 300 is used for adjusting the orientation of the clamping portion 400. So that the user can flexibly set the orientation of the clamping part 400 according to actual requirements.

It can be understood that the movable connector 300 may adopt a movable connector 300 commonly used in the prior art, in this embodiment, as shown in fig. 2 and fig. 5, preferably, the movable connector 300 includes a first connecting portion 301, a second connecting portion 302 and a locking pin 303 (an end of the locking pin 303 is provided with a groove for facilitating rotation), the first connecting portion 301 is provided with a ball head 304, one end of the second connecting portion 302 is provided with a groove, the ball head 304 is arranged in the groove, and the first connecting portion 301 and the second connecting portion 302 form a ball joint; the second connecting portion 302 is provided with a lock hole, the lock hole with the recess is linked together, the lock hole is provided with the internal thread, the fitting pin 303 be provided with the external screw thread of internal thread looks adaptation, fitting pin 303 is used for locking bulb 304 and for bulb 304 unblock. Utilize the ball joint, regulation second connecting portion 302 that can be convenient is for the position of first connecting portion 301, and utilize locking pin 303 locking or unblock bulb 304 that can be convenient, under the locking state, can prevent effectively that second connecting portion 302 from moving for first connecting portion 301, for cavity mirror camera lens provides stable support, under the unblock state, the regulation second connecting portion 302 that the user can be convenient is for the position, every single move etc. of first connecting portion 301, the all-round regulation of being convenient for.

In this embodiment, as shown in fig. 2, the adjustable supporting frame 200 includes a first supporting frame 201, the mounting portion 500 is fixed to one end of the first supporting frame 201, the clamping portion 400 is connected to the first supporting frame 201 through a movable connector 300, and the movable connector 300 is used to adjust the position of the clamping portion 400. Through the arrangement of the movable connector 300, the clamping portion 400 has the freedom of rotation and pitching relative to the first support frame 201, so that a user can flexibly adjust the orientation of the clamping portion 400 according to actual requirements.

It is understood that the first support frame 201 may have various embodiments, for example, the first support frame 201 may have a rod-shaped structure, such as a cylindrical rod, a square rod, etc., the first support frame 201 may also have a bent rod, various rod combinations, etc., as shown in fig. 2, for example, the first support frame 201 may be a round rod and is vertically disposed at the bedside of the operating table, and the first connection portion 301 of the movable connector 300 is fixed to the first support frame 201, and the second connection portion 302 of the movable connector 300 is fixed to the clamping portion 400, so that the orientation of the clamping portion 400 is adjusted by the ball joint formed between the first connection portion 301 and the second connection portion 302.

It can be understood that the clamping portion 400 has various embodiments, and as an example, the clamping portion 400 may be a clip, the clip is used for clamping the lens handle 102, and the lens handle 102 of the cavity mirror lens is clamped by the clip, so that the clip and the cavity mirror lens can be conveniently connected into a whole, and the cavity mirror lens can be supported and fixed; the clip may be a spring clip or the like commonly used in the art, and will not be described herein.

As shown in fig. 2, 3 and 4, as another example, the clamping portion 400 includes a restraining barrel 401 having a cylindrical structure, and the restraining barrel 401 is used for passing through the lens 101 and restraining the lens 101. When the endoscope lens is installed, one end of the lens penetrates into one end of the constraint cylinder 401, penetrates out of the zero end of the constraint cylinder 401 and is inserted into the abdominal cavity, and the lens handle 102 can be just clamped at one end of the constraint cylinder 401, so that the endoscope lens is constrained and fixed.

As shown in fig. 3 and 4, in order to fix the lens more firmly and prevent the lens 101 from shaking relative to the constraint cylinder 401, in a further aspect, the lens fixing device further includes a locking ring 402, the locking ring 402 is disposed at one end of the constraint cylinder 401, the locking ring 402 has elasticity and a certain width, and an inner diameter of the locking ring 402 is smaller than or equal to an outer diameter of the lens. In this scheme, a restraint section of thick bamboo 401's one end is provided with lock ring 402, when fixed chamber mirror camera lens, passes lock ring 402 with the camera lens, utilizes the elasticity of lock ring 402 to compress tightly camera lens 101 to realize the zonulae occludens (can the antiskid) of camera lens and a restraint section of thick bamboo 401, can effectively avoid the camera lens to rock for a restraint section of thick bamboo 401, in addition, utilizes lock ring 402 restraint camera lens, can effectively avoid damaging the camera lens, and the length of the regulation camera lens that can be convenient. Preferably, the locking ring 402 may be a rubber ring or a silicone ring. As shown in fig. 3 and 4, in the embodiment, a constricted section 404 is disposed at one end of the restraining barrel 401 where the locking ring 402 is disposed, that is, the diameter of the restraining barrel 401 is gradually reduced, so as to install the locking ring 402, and at the same time, the cost is saved.

In order to firmly fix the locking ring 402 to the restraining barrel 401, as shown in fig. 8, an annular groove 405 for accommodating the locking ring 402 is provided in the restraining barrel 401, and the depth of the annular groove 405 is smaller than the radial thickness of the locking ring 402, as shown in fig. 8, the locking ring 402 (the corner of the locking ring 402 is provided with a chamfer) installed in the annular groove 405 is just slightly larger than the inner diameter of the contracting section 404 at the corresponding position, during the process of inserting the lens into the restraining barrel 401, the inner wall of the contracting section 404 will act as a guide for the lens 101, so that the lens 101 can be automatically inserted into the position of the locking ring 402 and aligned with the locking ring 402, under the appropriate external force, the lens 101 can be smoothly inserted into and pass through the locking ring 402, and due to the arrangement of the annular groove 405, the locking ring 402 will not fall off under the friction force of the lens 101, so that the locking ring 402 can provide a certain locking force for the lens 101, the lens is prevented from shaking relative to the restraining barrel 401 during use; in addition, the locking ring 402 is fixed by the annular groove 405, and installation and replacement of the locking ring 402 are also facilitated.

In order to facilitate the adaptation of the endoscopic lens, in a further scheme, one end of the restriction barrel 401 is further provided with a notch 403 for clamping the optical fiber connector 103, as shown in fig. 3; after the cavity mirror lens is fixed to the restraining barrel 401, the optical fiber connector 103 of the cavity mirror lens can be just clamped in the notch 403, as shown in fig. 4, which is not only beneficial to better restraining the cavity mirror lens, but also can effectively prevent the cavity mirror lens from rotating relative to the restraining barrel 401, and is beneficial to more stably fixing the cavity mirror lens.

It is understood that the mounting portion 500 has various embodiments, and only the detachable mounting of the adjustable supporting frame 200 is needed, and as an example, the mounting portion 500 is a fixing clip for clamping an operating table. The fixation clamp can adopt the existing fixation clamp to utilize fixation clamp centre gripping operation table, like bed fender, bed beam, bedstead 601 etc. of centre gripping operation table, make adjustable support frame 200 can be connected as an organic whole with the operation table, thereby realize the fixed to adjustable support frame 200, so that the load.

As another example, as shown in fig. 2 and 6, the mounting portion 500 includes at least one mounting body 501, the mounting body 501 is fixed to the adjustable supporting frame 200, the mounting body 501 is provided with a clamping groove 502 and a clamping pin 503, one side of the clamping groove 502 is provided with a threaded hole, the clamping pin 503 is provided with an external thread, and in the threaded hole, the clamping pin 503 is used for locking a component clamped in the clamping groove 502. The component may be a bed stop, a bed beam, a bed frame 601, etc. of the operating bed, so as to enable detachable connection of the mounting portion 500 with the operating bed.

In a further scheme, as shown in fig. 6, the mounting body 501 is further provided with a through hole 504 for connecting the first support frame 201, a threaded hole communicating with the through hole 504, and an adjusting pin 505 provided in the threaded hole, wherein the adjusting pin 505 is used for locking/releasing the first support frame 201 provided in the through hole 504. By rotating the adjusting pin 505, the first supporting frame 201 arranged in the through hole 504 can be locked or loosened, which is not only convenient for disassembly, but also can effectively adjust the height of the first supporting frame 201 along the vertical direction.

Example 2

The main difference between this embodiment 2 and the above embodiment 1 is that in the lens fixing device for endoscopic surgery provided in this embodiment, the adjustable supporting frame 200 further includes a second supporting frame 202, as shown in fig. 7, one end of the second supporting frame 202 is connected to the first supporting frame 201 through a movable connector 300, the clamping portion 400 is connected to the second supporting frame 202 through another movable connector 300, and the movable connector 300 is used to adjust the orientation of the clamping portion 400. Through setting up two swing joint heads 300, can effectively increase the degree of freedom of clamping part 400, more be favorable to the user to adjust the position of clamping part 400 according to actual demand is nimble.

In this embodiment, the two movable connectors 300 may respectively adopt the movable connectors 300 described in embodiment 1, so as to effectively adjust the position of the second support frame 202 relative to the first support frame 201 and the position of the clamping portion 400 relative to the second support frame 202, so as to be more flexible and practical.

It is understood that there are many embodiments of the second support frame 202, and the second support frame 202 may have a rod-like structure, as shown in fig. 7, in this embodiment, the second support frame 202 has the same structure as the first support frame 201, and the second support frame 202 also adopts a round rod.

In order to increase the adjustment range, in a more sophisticated scheme, the first support frame 201 and/or the second support frame 202 may be a telescopic frame, so that the lengths of the first support frame 201 and the second support frame 202 are adjustable; it is understood that the telescopic frame may be a bracket and a rod having a telescopic function in the prior art, which will not be illustrated herein.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a camera lens fixing device for laparoscopic surgery, its characterized in that, includes adjustable support frame, adjustable support frame is provided with clamping part and installation department, the clamping part is used for detachable to connect and fixes the laparoscopic lens, the installation department is used for detachable to connect the operation table, adjustable support frame is used for supporting the laparoscopic lens and adjusts the position of laparoscopic lens.

2. The lens fixing device for endoscopic surgery as defined in claim 1, wherein the holding portion is a clip for holding a lens handle;

or the clamping part comprises a constraint cylinder with a cylindrical structure, and the constraint cylinder is used for penetrating through the lens and constraining the lens.

3. The lens fixing device for the endoscopic surgery as recited in claim 2, further comprising a locking ring, wherein the locking ring is arranged at one end of the restriction cylinder, the locking ring has elasticity, and the inner diameter of the locking ring is smaller than or equal to the outer diameter of the lens.

4. The lens fixing device for the endoscopic surgery as recited in claim 3, wherein the locking ring is a rubber ring or a silicone ring.

5. The lens fixing device for the endoscopic surgery as recited in claim 2, wherein one end of the restriction barrel is further provided with a notch for catching the optical fiber connector.

6. A lens holding device for use in laparoscopic surgery as defined in any one of claims 1 to 5, wherein said adjustable support frame includes at least one movable connector for adjusting the orientation of the clamping portion.

7. The lens fixing device for endoscopic surgery as defined in claim 2, wherein the adjustable support frame comprises a first support frame, the mounting portion is fixed to one end of the first support frame, the clamping portion is connected to the first support frame through a movable connector, and the movable connector is used for adjusting the orientation of the clamping portion;

or, the adjustable support frame includes first support frame and second support frame, the installation department is fixed in the one end of first support frame, the one end of second support frame through a swing joint head with first support frame links to each other, the clamping part through another swing joint head with the second support frame links to each other, the swing joint head is used for adjusting the position of clamping part.

8. The lens fixing device for endoscopic surgery as defined in claim 6, wherein the movable connector comprises a first connecting portion, a second connecting portion and a locking pin, the first connecting portion is provided with a ball head, one end of the second connecting portion is provided with a groove, the ball head is arranged in the groove, and the first connecting portion and the second connecting portion form a ball joint; the second connecting portion are provided with lockholes, the lockholes with the recess is linked together, the lockholes are provided with the internal thread, the fitting pin be provided with the external screw thread of internal thread looks adaptation, the fitting pin be used for locking the bulb and for the bulb unblock.

9. The lens fixing device for endoscopic surgery as defined in claim 7, wherein the mounting portion is a fixing clip for holding an operating table;

or, the installation department includes at least one installation body, the installation body is fixed in adjustable support frame, the installation body is provided with draw-in groove and chucking round pin, one side of draw-in groove is provided with the screw hole, the chucking round pin is provided with the external screw thread, and in screw hole screw thread pair, the chucking round pin is used for locking the part at the draw-in groove.

10. The lens fixing device for endoscopic surgery as defined in claim 9, wherein the mounting body is further provided with a through hole for connecting the first support frame, a threaded hole communicating with the through hole, and an adjusting pin provided in the threaded hole for locking/releasing the first support frame provided in the through hole.

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