Surgical instrument

Abstract

The present invention relates to a surgical instrument, which includes a handle, a working head detachably connected to the handle, and a shaft device detachably connected to the working head. The working head includes a housing, a rotating head, and a first communication component. An opening for connecting the first communication component to the outside is formed on the housing, and the opening is located inside the rotating head. A first guiding member is formed inside the rotating head. The shaft device includes a firing sleeve and a docking portion provided on the firing sleeve body. The docking portion includes a docking housing for inserting into the rotating head and a second communication component provided at the front end of the docking housing for plugging into the first communication component. A second guiding member for cooperating with the first guiding member to adjust the docking position between the second communication component and the first communication component is formed on the docking housing. By providing the first guiding member and the second guiding member, the first guiding member and the second guiding member cooperate with each other to enable the shaft device to be quickly docked with the working head, which is simple, fast, and convenient.

Description

Technical Field

[0001] The present invention relates to a surgical instrument, belonging to the technical field of medical devices. Background Art

[0002] During a surgical operation, in order to fully expose the surgical field of view, it is necessary to ligate the blood vessels around the target tissue to prevent bleeding. Hemostasis technology has become one of the core basic operation technologies in surgery. Surgical operations in any part of the human body almost invariably involve bleeding and hemostasis. Generally, a clip applier is used to close the hemostasis with a ligating clip. In the prior art, the clip applier includes a reusable handle, a working head, and a disposable rod body device or a similar device. If the handle is electric, when the rod body device is docked with the working head, the connection is achieved through an electrical interface. However, the shape of the electrical interface is generally set to be not easily docked, making it difficult for the rod body device to be docked with the working head and affecting the use. Summary of the Invention

[0003] The purpose of the present invention is to provide a surgical instrument, which is provided with a first guiding member and a second guiding member. The first guiding member and the second guiding member cooperate with each other to enable the rod body device to be quickly docked with the working head, which is simple, fast and convenient.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A surgical instrument includes a handle, a working head detachably connected to the handle, and a rod body device detachably connected to the working head. The working head includes a housing, a rotating head installed on the housing, a driving rod and a first communication component arranged in the housing. An opening for connecting the first communication component to the outside is formed on the housing, and the opening is located in the rotating head. A first guiding member is formed in the rotating head. The rod body device includes a firing sleeve, a clip cartridge assembly arranged in the firing sleeve, and a docking portion arranged on the firing sleeve body. The docking portion includes a docking housing for inserting into the rotating head and a second communication component arranged at the front end of the docking housing for plugging into the first communication component. A second guiding member for cooperating with the first guiding member to adjust the docking position of the second communication component and the first communication component is formed on the docking housing.

[0005] Further, the first guiding member includes at least two first bosses arranged at intervals, and the second guiding member at least includes a second boss clamped between the at least two first bosses.

[0006] Further, the first boss and the second boss are in an arrow-shaped structure.

[0007] Further, the second communication component includes a communication housing mounted on the docking housing and electrical terminals disposed within the communication housing. The communication housing forms a rectangular opening for exposing the electrical terminals, and the first communication component includes a plugging interface that mates with the rectangular opening.

[0008] Further, the communication housing has a cylindrical structure, and an annular protrusion projects from the outer cylindrical surface of the communication housing. A first groove that mates with the protrusion is provided on the docking housing.

[0009] Further, the docking housing has a cylindrical structure, and a second groove is provided on the docking housing. A sphere that engages with the second groove is provided on the rotating head.

[0010] Further, the second communication component further includes a support member connected to the electrical terminals. A first through-hole is provided on the support member, and a second through-hole corresponding to the position of the first through-hole is provided on the communication housing. The drive rod sequentially passes through the second through-hole and the first through-hole to connect the cartridge assembly and the firing sleeve.

[0011] Further, the rod body device further includes a rod body assembly connected to the drive rod. The rod body assembly includes a push rod connected to the cartridge assembly and a firing rod for pushing the firing sleeve. The firing rod is provided with a hollow portion, and the push rod is disposed within the hollow portion and is slidable relative to the firing rod. The push rod moves forward to cause the cartridge assembly to feed cartridges, and the push rod continues to move forward to abut against the firing rod to drive the firing sleeve to fire.

[0012] Further, the firing sleeve has a skirt, and a convex block is provided on the firing rod, and a first elastic member is provided between the convex block and the skirt to cause the firing rod to reset.

[0013] Further, a stop block is provided at one end of the push rod, and a second elastic member is provided between the stop block and the convex block to cause the push rod to reset.

[0014] The beneficial effects of the present invention are as follows: By providing a rotating head and a docking portion, with a first guiding member provided on the rotating head and a second guiding member provided on the docking portion, the mutual cooperation of the first guiding member and the second guiding member enables the rod body assembly to be quickly docked with the working head, which is fast, convenient, and efficient.

[0015] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the present invention more clearly and to be implemented in accordance with the content of the specification, the following describes in detail with reference to the preferred embodiments of the present invention and the accompanying drawings. Description of the Drawings

[0016] Figure 1Schematic diagram of the overall structure of the surgical instrument of the present invention.

[0017] Figure 2 Explosion diagram of the handle, working head and shaft device.

[0018] Figure 3 It is Figure 1 Schematic diagram of the structure of the working head in

[0019] Figure 4 It is Figure 3 Cross-sectional schematic diagram of

[0020] Figure 5 It is Figure 1 Schematic diagram of the structure of the shaft device in

[0021] Figure 6 It is Figure 5 Cross-sectional view of

[0022] Figure 7 It is Figure 1 Explosion diagram of the shaft device in

[0023] Figure 8 It is Figure 1 Partial explosion diagram of the shaft device in

[0024] Figure 9 It is Figure 1 Another partial explosion diagram of the shaft device in Specific embodiments

[0025] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0026] Please refer to Figures 1 to 9 , the surgical instrument in a preferred embodiment of the present invention includes a handle 1, a working head 2 detachably connected to the handle 1, and a shaft device 3 detachably connected to the working head 2. By detachably connecting the handle 1, the working head 2, and the shaft device 3, when any one of them is damaged, it can be directly replaced without replacing the entire surgical instrument, so as to save medical costs and reduce the economic pressure on patients. The working head 2 and the handle 1, and the working head 2 and the shaft device 3 can be detachably connected by means of clamping, screw fitting, plugging, etc. In this embodiment, the working head 2 and the handle 1 are connected by clamping, and the working head 2 and the shaft device 3 are connected by plugging.

[0027] The working head 2 includes a housing 21, a driving rod 23 disposed within the housing 21, a first communication component, and a rotating head 22 mounted on the housing 21. An opening 211 for connecting the first communication component to the outside is formed on the housing 21, and the opening 211 is located within the rotating head 22. A first guiding member 222 is formed within the rotating head 22. The rod body device 3 includes a firing sleeve 31, a cartridge assembly 33 disposed within the firing sleeve 31, and a docking portion 32 disposed on the firing sleeve body 31. The docking portion 32 includes a docking housing 321 for insertion into the rotating head 22 and a second communication component 322 disposed at the front end of the docking housing 321 for plugging into the first communication component. A second guiding member 323 is formed on the docking housing 321 for cooperating with the first guiding member 222 to adjust the docking position of the second communication component 321 and the first communication component. When the rod body device 3 is inserted into the rotating head 22, the first guiding member 222 and the second guiding member 323 cooperate with each other to dock the first communication component and the second communication component 322, and the driving rod 23 is connected to the cartridge assembly 33 and the firing sleeve 31.

[0028] In this embodiment, it is not easy to dock the first communication component and the second communication component 322. Among them, the second communication component 322 includes a communication housing 3221 mounted on the docking housing 321 and electrical terminals 3222 disposed within the communication housing 3221. The communication housing 3221 forms a rectangular opening 3225 for exposing the electrical terminals 3222. The first communication component includes a docking interface for plugging into the rectangular opening 3225, and the docking interface and the rectangular opening 3225 need to be completely aligned during docking. Therefore, the design of the first guiding member 222 and the second guiding member 323 is particularly important to achieve a fast, convenient, and efficient effect. Specifically, the first guiding member 222 includes at least two first bosses 2221 spaced apart from each other, and the second guiding member 323 at least includes a second boss 3231 that snaps between at least two first bosses 2221. The first bosses 2221 and the second boss 3231 are in an arrow-shaped structure. When preparing for docking, the arrows of the first bosses 2221 and the second boss 3231 are arranged opposite to each other; after docking, the arrows of the first bosses 2221 and the second boss 3231 are misaligned and arranged away from each other.

[0029] It should be noted that in other embodiments, the shapes of the first boss 2221 and the second boss 3231 can also be other shapes, depending on the actual situation, and will not be specifically limited here. This embodiment also does not specifically limit the number of the first boss 2221 and the second boss 3231, which depends on the actual situation.

[0030] The communication housing 3221 has a cylindrical structure. An annular protrusion 3224 protrudes from the outer cylindrical surface of the communication housing 3221. A first groove 3211 that mates with the protrusion 3224 is provided on the docking housing 321. The second communication component 321 is rotatable relative to the docking housing 321. Correspondingly, the docking housing 3221 also has a cylindrical structure. A second groove 3212 is provided on the docking housing 3221. A sphere 221 that engages with the second groove 3212 is provided on the rotating head 22.

[0031] The process of inserting the rod body device 3 into the rotating head 22 is as follows: Rotate the communication housing 3221 to rotate it relative to the docking housing 321 to adjust the position of the second communication component 322 so that when the position of the second communication component 322 corresponds to that of the first communication component, the interval positions between the second boss 3231 and the two first bosses 2221 are roughly corresponding. When the rod body device 3 is inserted into the rotating head 22, finely adjust the position of the rod body device 3 so that the second boss 3231 cooperates with the first boss 2221 until the rectangular opening 3225 is completely docked with the docking port. At this time, the second groove 3212 engages with the sphere 221. After the rod body device 3 is inserted into the rotating head 22, when adjusting the angle of the rod body assembly 3 by rotating the rotating head 22, since the second communication component 322 remains stationary when docked with the first communication component, the docking housing 321 rotates relative to the second communication component 322 to complete the angle adjustment of the rod body device 3.

[0032] The clip cartridge assembly 33 includes a clip tray for placing the ligating clip 332, a clip pusher 331 for pushing the ligating clip 332 forward, and a pair of clip jaws 334 connected to the clip tray. The rod body device 3 further includes a rod body assembly 34 connected to the driving rod 23. The rod body assembly 34 includes a push rod 341 connected to the clip cartridge assembly 33 and a firing rod 342 connected to the firing sleeve 31. The firing rod 342 is provided with a hollow portion. The push rod 341 is disposed within the hollow portion and is slidable relative to the firing rod 342. The push rod 341 moves forward to feed the clip in the clip cartridge assembly 33. The push rod 341 continues to move forward and abuts against the firing rod 342 to drive the firing sleeve 31 to fire. As described above, a first through hole 3227 is provided on the support member 3223. The support member 3223 is connected to the push rod 341 through the first through hole 3227. A second through hole 3226 corresponding to the position of the first through hole 3227 is further provided on the through hole housing 21. The driving rod 23 sequentially passes through the second through hole 3226 and the first through hole 3227 and is docked with the push rod 341 to push the clip pusher 331 to feed the clip and drive the firing sleeve 31 to fire, causing the clip jaws 334 to close.

[0033] The firing sleeve 31 has a skirt, a bump 3422 is provided on the firing rod 342, and a first elastic member 35 is provided between the bump 3422 and the skirt to reset the firing rod 342. One end of the push rod 341 is provided with a stop block 3411, and a second elastic member 36 is provided between the stop block 3411 and the bump 3422 to reset the push rod 341. Wherein, the diameter of the stop block 3411 is greater than or equal to the diameter of the firing rod 342 to prevent the push rod 341 from sliding into the firing rod 342.

[0034] The above-mentioned rotating head 22, docking housing 321 and communication housing 3221 can be provided separately or integrally, depending on the actual situation, and no specific limitation is made here.

[0035] The handle 1 is an electric handle 1, which includes a handle housing 13 having a receiving cavity, a motor 14 provided in the receiving cavity, a control circuit electrically connected to the motor 14, a first switch 11 and a second switch 12 provided on the handle housing 13 and coupled to the control circuit. The working head 2 is also provided with a transmission mechanism 25 for converting the radial force of the motor 14 into an axial force, and the driving rod 23 is connected to the transmission mechanism 25. Among them, the first switch 11 is used to drive the driving rod 23 to move forward, and the second switch 12 is used to drive the drive shaft to retreat. It should be noted that the drive assembly, control circuit, first switch 11 and second switch 12 can also be provided in the working part, depending on the actual situation, and no specific limitation is made here.

[0036] The implementation process of the assembled surgical instrument is as follows: The motor 14 drives the driving rod 23 to move forward to push the push rod 341 to move forward, thereby pushing the ligating clip 332 towards the clamp 334. At this time, the second elastic member 36 is gradually compressed; the push rod 341 continues to move forward and abuts against the firing rod 342 and drives the firing rod 342 to move forward so that the first elastic member 35 pushes the firing sleeve 31 to move forward until the ligating clip 332 is conveyed to the clamp 334 and the firing sleeve 31 closes the clamp 334 to fire. At this time, the first elastic member 35 is in a compressed state. The motor 14 drives the driving rod 23 to retreat. After the external force is withdrawn, the compressed first elastic member 35 drives the firing rod 342 to reset under the action of its own elastic force, and the second elastic member 36 drives the push rod 341 to reset under the action of its own elastic force after the external force is withdrawn.

[0037] In summary: By providing a rotating head and a docking portion 3222, the rotating head is provided with a first guiding member 222, and the docking portion 3222 is provided with a second guiding member 323. The mutual cooperation between the first guiding member 222 and the second guiding member 323 enables the rod body assembly to be quickly docked with the working head 2, which is fast, convenient and efficient.

[0038] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0039] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A surgical instrument, characterized in that, It includes a handle, a working head detachably connected to the handle, and a rod body device detachably connected to the working head. The working head includes a housing, a rotating head mounted on the housing, and a driving rod and a first communication component disposed in the housing. An opening for connecting the first communication component to the outside is formed on the housing, and the opening is located within the rotating head. A first guiding member is formed within the rotating head. The rod body device includes a firing sleeve, a cartridge clip assembly disposed within the firing sleeve, and a docking portion disposed on the firing sleeve. The docking portion includes a docking housing for insertion into the rotating head and a second communication component disposed at the front end of the docking housing for plugging into the first communication component. A second guiding member is formed on the docking housing for cooperating with the first guiding member to adjust the docking position of the second communication component and the first communication component. The second communication component includes a communication housing mounted on the docking housing. The communication housing has a cylindrical structure, and a ring-shaped protrusion protrudes from the outer cylindrical surface of the communication housing. A first groove is provided on the docking housing for cooperating with the protrusion. The docking housing has a cylindrical structure, and a second groove is provided on the docking housing. A sphere is provided on the rotating head for engaging with the second groove. The first guiding member includes at least two first bosses spaced apart from each other. The second guiding member includes at least a second boss that engages between the at least two first bosses. The first boss and the second boss have an arrow-shaped structure.

2. The surgical instrument according to claim 1, wherein The second communication component includes electrical terminals disposed within the communication housing. A rectangular opening is formed in the communication housing for exposing the electrical terminals. The first communication component includes a docking interface for plugging into the rectangular opening.

3. The surgical instrument according to claim 2, characterized in that, The second communication component further includes a support member connected to the electrical terminals. A first through hole is provided on the support member, and a second through hole corresponding to the position of the first through hole is provided on the communication housing. The driving rod sequentially passes through the second through hole and the first through hole to connect the cartridge clip assembly and the firing sleeve.

4. The surgical instrument according to claim 1, wherein The rod body device further includes a rod body component connected to the driving rod. The rod body component includes a push rod connected to the cartridge clip assembly and a firing rod for pushing the firing sleeve. The firing rod has a hollow portion, and the push rod is disposed within the hollow portion and is slidable relative to the firing rod. The push rod moves forward to feed the cartridge clip assembly, and the push rod continues to move forward to abut against the firing rod to drive the firing sleeve to fire.

5. The surgical instrument according to claim 4, characterized in that, The firing sleeve has a skirt. A protrusion is provided on the firing rod, and a first elastic member is disposed between the protrusion and the skirt to reset the firing rod.

6. The surgical instrument according to claim 5, wherein, A stop block is provided at one end of the push rod, and a second elastic member is disposed between the stop block and the protrusion to reset the push rod.

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