Endoscopic intraperitoneal needle searching device

Abstract

The invention discloses an intraperitoneal needle searching device under an endoscope. The intraperitoneal needle searching device comprises a rod body assembly and an adsorption assembly, the rod body assembly comprises a sleeve; the adsorption assembly comprises an electromagnet, the electromagnet is arranged at one end of a sleeve, and a switch of the electromagnet is arranged at the other end of the sleeve. According to the intraperitoneal needle searching device under the endoscope, through the magnetic attraction effect of the electromagnet, the surrounding suture needle can be quickly found without being observed and searched by naked eyes, the suture needle can be taken out after being attracted, and compared with a needle holder for clamping, the operation is more convenient and simpler.

Description

Technical Field

[0001] The invention particularly relates to a laparoscope intra-abdominal needle finder. Background Art

[0002] During laparoscopic surgery, after tissue incision is completed, the incised tissue is typically sutured using a needle and suture thread. During this suturing process, medical personnel use a handheld needle holder to hold the steel suture needle and thread the needle. However, due to a malfunction of the needle holder or an operator error, the needle may fall out of the needle holder and fall somewhere within the abdominal cavity. If this happens, medical personnel must quickly locate and remove the fallen needle.

[0003] Currently, there is a lack of effective methods for finding suture needles. Suture needles are small and difficult to observe, sometimes even requiring the patient's surgical incision to be expanded for a more comprehensive search. This not only increases surgical time but can also cause additional trauma to the patient. Furthermore, due to the small size of suture needles, it is difficult to accurately grasp and lift them from within the patient's body using a needle holder, which requires high user skill and is prone to errors. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides a laparoscopic intra-abdominal needle finder, which can find and remove suture needles more quickly and conveniently.

[0005] In order to achieve the above-mentioned object, the present invention is implemented through the following technical solutions: a laparoscopic intraperitoneal needle finder, comprising an adsorption component and a rod component; The adsorption component includes an electromagnet; The rod assembly comprises a sleeve, the electromagnet is arranged at one end of the sleeve, and the other end of the sleeve is provided with a switch of the electromagnet.

[0006] Insert the end of the sleeve into the position in the abdominal cavity where the suture needle may fall, turn on the switch of the electromagnet to energize it to generate magnetism, and the electromagnet can absorb the nearby suture needle. In the absorbed state, the sleeve can be removed to remove the suture needle.

[0007] The beneficial effect of the above-mentioned laparoscopic intraperitoneal needle finder is that it can quickly find the surrounding suture needles through the magnetic attraction of the electromagnet without the need for visual observation, and can remove the suture needles after adsorption. Compared with clamping with a needle holder, the operation is more convenient and simple.

[0008] Furthermore, the rod assembly also includes a screw and a mounting post. The inner wall of the sleeve is provided with an internal thread. The screw is threadedly connected to the sleeve and connected to the mounting post. The electromagnet is arranged on the mounting post.

[0009] After inserting one end of the sleeve into the patient's body, the user rotates the screw from the outside to move the screw along the axial direction of the sleeve, thereby pushing the mounting post and the electromagnet outward, causing the electromagnet to search for a nearby suture needle in the abdominal cavity.

[0010] Furthermore, the mounting post is provided with an insulating rubber layer wrapped around the outside of the electromagnet.

[0011] The insulating rubber layer can play a protective role and prevent the electromagnet from contacting the intra-abdominal tissue.

[0012] Furthermore, a limiting groove is provided on the inner wall of the sleeve along the axial direction, and a sliding block is provided on the side of the mounting column, which is slidably connected to the limiting groove, one end of which is rotatably connected to the screw rod and the other end is connected to the electromagnet.

[0013] The limiting groove can limit the running track of the installation column. When the screw pushes the installation column to move along the axial direction of the sleeve, the installation column can only move but cannot rotate, and has good stability.

[0014] Furthermore, the rod body assembly also includes a ring and a push rod, and the inner wall of the sleeve is also provided with a limiting groove 2 along the axial direction. The ring is located on the side of the mounting column away from the screw, and the outer side of the ring is slidingly connected to the limiting groove 2. The push rod is arranged on the inner side of the ring, and the iron core column of the electromagnet is hinged to the mounting column, and the push rod can push the iron core column to rotate relative to the mounting column.

[0015] As the screw moves axially, it pushes the mounting post within the sleeve, pushing the electromagnet's core out of the sleeve to attract the surrounding suture needles. Once the core contacting the push rod, the push rod allows it to rotate relative to the mounting post, thereby expanding the needle-finding range.

[0016] Furthermore, the limiting groove includes a straight groove section and a spiral section that are connected, the straight groove section is arranged along the axial direction of the sleeve, and the spiral section is arranged in a spiral shape along the axial direction, and the straight groove section is closer to the screw than the spiral section, and the slider is slidably connected to the straight groove section and the spiral section of the limiting groove; The sides of the collar and the mounting column that are close to each other can be plugged into each other, and the limiting groove 2 includes a straight groove section 2 and a spiral section 2 that are connected, and the straight groove section 2 is closer to the mounting column than the spiral section 2. The collar is slidably connected to the straight groove section 2 and the spiral section 2 of the limiting groove 2.

[0017] When the mounting post is moved by the screw, it first slides within the straight slot and pushes the electromagnet's core out of the sleeve. During this time, the mounting post and the core do not rotate. The mounting post then slides within the spiral section, where, constrained by the spiral's trajectory, the post simultaneously rotates. Because the collar fits snugly onto the mounting post, the post drives the collar, which in turn rotates the push rod and core together, keeping the core extended and allowing it to search for surrounding suture needles, further improving its needle-finding range. A second limiter slot limits the collar's trajectory, ensuring stable movement.

[0018] Furthermore, it also includes a driving assembly, including a motor, a mounting seat and a limit rod. The motor is arranged on the mounting seat, and the output shaft is connected to the screw. The end of the sleeve is provided with multiple holes along the axial direction. The multiple limit rods are slidably inserted into each hole and connected to the mounting seat.

[0019] The motor is started to drive the screw to rotate, which can drive the screw to move axially in the sleeve, and at the same time drive the motor and the mounting seat to move together, and the limit rod slides in the socket.

[0020] Furthermore, the driving assembly also includes a driving gear and a driven gear, the driving gear is connected to the output shaft of the motor, the driven gear is rotatably disposed on the mounting seat and connected to the screw, and the driving gear is meshed with the driven gear.

[0021] The motor drives the driving gear to rotate, which in turn drives the driven gear to rotate, thus driving the screw to rotate. By transmitting the smaller driving gear and the larger driven gear, the screw's speed can be slowed down to prevent the electromagnet from moving too fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0023] Figure 1 A front view of a laparoscopic intraperitoneal needle finder provided in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of a sleeve of a laparoscopic intraperitoneal needle finder is shown; Figure 3 for Figure 1 A schematic diagram of the working of a rod assembly of a laparoscopic intra-abdominal needle finder is shown; Reference numerals: 10-adsorption component, 11-electromagnet; 20-rod assembly, 21-sleeve, 211-limiting groove, 2111-straight groove section, 2112-spiral section, 212-limiting groove second, 2121-straight groove section second, 2122-spiral section second, 22-screw, 23-mounting column, 24-collar, 25-push rod; 30-driving assembly, 31-motor, 32-mounting seat, 33-limiting rod, 34-driving gear, 35-driven gear. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0025] See also Figures 1 to 3 The present invention provides a laparoscopic intra-abdominal needle finder, which includes an adsorption component 10 and a rod component 20. The adsorption component 10 is extended into the abdominal cavity through the rod component 20 to find and pick up a fallen suture needle.

[0026] Specifically, the adsorption assembly 10 includes an electromagnet 11 . The rod assembly 20 includes a sleeve 21 , the electromagnet 11 is disposed at one end of the sleeve 21 , and a switch of the electromagnet 11 is disposed at the other end of the sleeve 21 .

[0027] During use, the end of the sleeve 21 is inserted into the abdominal cavity where the suture needle may fall, and the switch of the electromagnet 11 is turned on to generate magnetism, so that the electromagnet 11 can absorb the nearby suture needle. The sleeve 21 is removed in the absorbed state to remove the suture needle. The magnetic attraction of the electromagnet 11 can quickly find the surrounding suture needles without the need for visual observation. The suture needle can be removed in the absorbed state, which is more convenient and simpler than clamping with a needle holder.

[0028] Specifically, the rod body assembly 20 also includes a screw 22 and a mounting post 23. The inner wall of the sleeve 21 is provided with an internal thread. The screw 22 is threadedly connected to the inner wall of the sleeve 21, and the end is connected to the mounting post 23. The electromagnet 11 is arranged on the mounting post 23, and the mounting post 23 is provided with an insulating rubber layer wrapped around the outside of the electromagnet 11.

[0029] After inserting one end of sleeve 21 into the patient's body, the user rotates screw 22 from the outside, causing screw 22 to move axially along sleeve 21, thereby pushing mounting post 23 outward and pushing the end of electromagnet 11 out of sleeve 21 to locate a nearby suture needle within the abdominal cavity. The insulating layer provides protection, preventing the electromagnet from contacting tissue within the abdominal cavity.

[0030] Specifically, the inner wall of the sleeve 21 is provided with a limiting groove 211 along the axial direction, and the limiting groove 211 includes a straight groove section 2111 and a spiral section 2112. The straight groove section 2111 is arranged along the axial direction of the sleeve 21, and the spiral section 2112 is arranged in a spiral shape along the axial direction. The straight groove section 2111 is closer to the screw 22 than the spiral section 2112. The side of the mounting post 23 is provided with a slider that is slidably connected to the limiting groove 211 and is slidably connected to both the straight groove section 2111 and the spiral section 2112. One end of the mounting post 23 is rotatably connected to the screw 22, and the other end can be connected to the electromagnet 11.

[0031] The limiting groove 211 can limit the running trajectory of the mounting column 23. When the screw 22 pushes the mounting column 23 to move axially along the sleeve 21, the mounting column 23 first moves axially in the straight groove section 2111 and cannot rotate, and then moves axially in the spiral section 2112 and rotates.

[0032] The rod assembly 20 also includes a collar 24 and a push rod 25. The collar 24 is located on the side of the mounting post 23 away from the screw 22. The inner wall of the sleeve 21 also has a second limit slot 212 axially defined therein. The second limit slot 212 comprises a second straight slot section 2121 and a second spiral section 2122, which are interconnected. The second straight slot section 2121 is closer to the mounting post 23 than the second spiral section 2122. The outer side of the collar 24 is slidably connected to both the second straight slot section 2121 and the second spiral section 2122. The push rod 25 is disposed on the inner side of the collar 24 and has an inclined surface at its end. The core column of the electromagnet 11 is hingedly connected to the mounting post 23. After the push rod 25 contacts the core column via the inclined surface, it can push the core column to rotate relative to the mounting post 23. The collar 24 and the mounting post 23 on their adjacent sides can also be plugged into each other, with a socket and an insert provided on each side.

[0033] As the screw 22 moves axially, it pushes the mounting post 23 within the straight slot section 2111, pushing the core column of the electromagnet 11 out of the sleeve 21 and attracting the surrounding suture needles. At this time, the mounting post 23 and the core column do not rotate. After the core column at the end contacts the push rod 25, due to the large friction between the collar 24 and the second limiting groove 212, the push rod 25 first pushes the core column to rotate relative to the mounting post 23, thereby rotating outward to expand the needle search range. At the same time, the collar 24 and the mounting post 23 are plugged into each other, and then the mounting post 23 pushes the collar 24 to move together. After the mounting post 23 slides into the spiral section 2112, it rotates while moving, limited by the trajectory of the spiral section 2112. Because the collar 24 is plugged into the mounting post 23, the mounting post 23 can drive the collar 24 to rotate together, causing the push rod 25 and the core post to rotate together, keeping the core post extended, allowing the needle to be found in the surrounding area, further improving the needle search range. The second limit groove 212 can limit the movement trajectory of the collar 24 to ensure stable movement.

[0034] Specifically, the drive assembly 30 includes a motor 31, a mounting base 32, and a limiting rod 33. The motor 31 is mounted on the mounting base 32, and its output shaft is connected to the screw 22. The end of the sleeve 21 is provided with a plurality of axially-oriented sockets. A plurality of limiting rods 33 are slidably inserted into each socket and connected to the mounting base 32. When the motor 31 is started to drive the screw 22 to rotate, the screw 22 is driven to move axially within the sleeve 21, and the motor 31 and the mounting base 32 are moved together, while the limiting rods 33 slide in the sockets.

[0035] In this embodiment, the drive assembly 30 further includes a driving gear 34 and a driven gear 35. The driving gear 34 is connected to the output shaft of the motor 31, and the driven gear 35 is rotatably mounted on the mounting base 32 and connected to the screw 22. The driving gear 34 and the driven gear 35 mesh with each other. The switch of the motor 31 is located on the sleeve 21, adjacent to the switch of the electromagnet, for easy operation by the user. After activation, the driving gear 34 is driven to rotate, which in turn drives the driven gear 35 to rotate, thereby driving the screw 22 to rotate. The transmission through the smaller diameter driving gear 34 and the larger diameter driven gear 35 can slow the rotation of the screw 22 to prevent the electromagnet 11 from moving too quickly.

[0036] The working principle of the above-mentioned laparoscopic intraperitoneal needle finder is as follows: After inserting one end of the sleeve 21 into the patient's body and turning on the switch of the motor 31, the screw 22 is driven to rotate through the driving gear 34 and the driven gear 35, causing it to move axially while pushing the mounting post 23 and the electromagnet 11 to move together. The mounting post 23 first slides within the straight groove section 2111 of the slide until the push rod 25 contacts the iron core column of the electromagnet 11, pushing the iron core column to rotate relative to the mounting post 23, while the mounting post 23 and the collar 24 are plugged into each other. The mounting post 23 then slides within the spiral section 2112 of the slide, rotating while moving, and driving the collar 24 and the electromagnet 11 to rotate, while the push rod 25 maintains the outward position of the iron core column. By pushing the electromagnet 11 out of the sleeve 21 and rotating it outward to expand it, and continuously rotating it, the electromagnet is energized to search for a nearby suture needle. After finding the suture needle and adsorbing it, the sleeve 21 can be removed as a whole.

[0037] The laparoscopic intraperitoneal needle finder described above uses the magnetic attraction of the electromagnet to quickly locate surrounding suture needles, eliminating the need for visual inspection. The needle can be removed by simply adsorbing and holding it, making it more convenient and simpler to operate than using a needle holder. Furthermore, the electromagnet can expand outward and continuously rotate circumferentially, expanding the search range and achieving better needle-finding results.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A laparoscopic intraperitoneal needle finder, characterized by: It includes an adsorption component and a rod component; The adsorption component includes an electromagnet; The rod assembly comprises a sleeve, the electromagnet is arranged at one end of the sleeve, and the other end of the sleeve is provided with a switch of the electromagnet.

2. The laparoscopic intraperitoneal needle finder according to claim 1, characterized in that: The rod assembly also includes a screw and a mounting post. The inner wall of the sleeve is provided with an internal thread. The screw is threadedly connected to the sleeve and connected to the mounting post. The electromagnet is arranged on the mounting post.

3. The laparoscopic intraperitoneal needle finder according to claim 2, characterized in that: The mounting post is provided with an insulating rubber layer wrapped around the outside of the electromagnet.

4. The laparoscopic intraperitoneal needle finder according to claim 2, characterized in that: The inner wall of the sleeve is provided with a limiting groove along the axial direction, and the side surface of the mounting column is provided with a sliding block slidably connected to the limiting groove, one end of the sliding block is rotatably connected to the screw rod, and the other end is connected to the electromagnet.

5. The laparoscopic intraperitoneal needle finder according to claim 4, characterized in that: The rod body assembly also includes a ring and a push rod. The inner wall of the sleeve is further provided with a limiting groove 2 along the axial direction. The ring is located on the side of the mounting column away from the screw rod. The outer side of the ring is slidingly connected to the limiting groove 2. The push rod is arranged on the inner side of the ring. The iron core column of the electromagnet is hinged to the mounting column. The push rod can push the iron core column to rotate relative to the mounting column.

6. The laparoscopic intraperitoneal needle finder according to claim 5, characterized in that: The limiting groove includes a straight groove section and a spiral section that are connected. The straight groove section is arranged along the axial direction of the sleeve, and the spiral section is arranged in a spiral shape along the axial direction. The straight groove section is closer to the screw than the spiral section. The slider is slidably connected to the straight groove section and the spiral section of the limiting groove. The sides of the collar and the mounting column that are close to each other can be plugged into each other, and the limiting groove 2 includes a straight groove section 2 and a spiral section 2 that are connected, and the straight groove section 2 is closer to the mounting column than the spiral section 2. The collar is slidably connected to the straight groove section 2 and the spiral section 2 of the limiting groove 2.

7. The laparoscopic intraperitoneal needle finder according to claim 2, characterized in that: It also includes a driving assembly, including a motor, a mounting seat and a limit rod. The motor is arranged on the mounting seat, and the output shaft is connected to the screw. The end of the sleeve is provided with multiple holes along the axial direction. The multiple limit rods are slidably inserted into each hole and connected to the mounting seat.

8. The laparoscopic intraperitoneal needle finder according to claim 7, characterized in that: The driving assembly further comprises a driving gear and a driven gear, wherein the driving gear is connected to the output shaft of the motor, and the driven gear is rotatably arranged on a mounting seat and connected to the screw, and the driving gear is meshed with the driven gear.

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