CN211094347U

CN211094347U - Traction core and traction device for endoscopic surgery

Info

Publication number: CN211094347U
Application number: CN201921106293.6U
Authority: CN
Inventors: 张强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-07-28
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a draw core and be used for draw gear of endoscope operation, draw the core and include the core body, the core body includes first body and second body, and the second body is located the rear end of first body, and the diameter of second body is greater than the diameter of first body. The traction core has structures with different thicknesses, the thicker part is harder and is convenient to push and pull, and the thinner part is softer and is convenient to bend and ensure the traction safety; the sliding part is designed in the traction device, so that the traction core can be conveniently pushed and pulled in an operation; the traction device is provided with a traction core which sequentially penetrates through the outer tube and the third handle, the traction core is convenient to insert and withdraw, and the structure is simple and convenient to operate; the traction device is designed to realize multi-stage extension and retraction of the traction core, the inner tube and the outer tube, and the hardness of the outer tube and the bending of the front end of the traction core can be conveniently adjusted during operation. The utility model discloses rational in infrastructure, can more safe effectual realization tissue draw in order to expose the operation field of vision, effectual supplementary completion endoscopic surgery, but wide application in endoscopic surgery field.

Description

Traction core and traction device for endoscopic surgery

Technical Field

The utility model relates to an endoscopic surgery field, in particular to traction core to and be used for endoscopic surgery's draw gear, applied this traction core among the draw gear.

Background

With the development of endoscopic minimally invasive techniques, some digestive lesions, such as early stage digestive tract tumors, can be endoscopically minimally invasive. Endoscopic minimally invasive techniques are less invasive and simpler and faster than surgical procedures, however, limitations also exist. Currently, endoscopes used in minimally invasive endoscopic surgery belong to flexible endoscopes and single-channel endoscopes, and the operation of an endoscopist is similar to single-arm operation, so that the flexibility and controllability of surgical operations and laparoscopic operations under multi-channel double-arm operation are inferior.

The tissue traction device can well solve the limitation, fully exposes the operation part through tissue traction, can improve the operation efficiency and reduce the operation risk, is helpful for more endoscope operation rooms to master and skillfully perform endoscope minimally invasive operations, and benefits more patients. Although some endoscopic surgery tissue traction devices have appeared in clinic, the endoscopic surgery tissue traction devices have limitations, particularly limited application range and poor controllability, and are difficult to popularize. The device described by this patent addresses these limitations and effectively assists endoscopic surgery by tissue retraction, more safely and effectively completing endoscopic surgery.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the auxiliary endoscope operation is more safely and effectively completed, the utility model adopts the following technical scheme:

the utility model provides a traction core, it includes the core body, and the core body includes first body and second body, and the second body is located the rear end of first body, and the diameter of second body is greater than the diameter of first body.

Furthermore, a second limiting part is formed on the second body, and the diameter of the second limiting part is larger than that of the second body.

Furthermore, the first body is formed with a first limiting part, and the diameter of the first limiting part is larger than that of the first body.

Furthermore, a third limiting part is formed at the rear end of the core body, and the diameter of the third limiting part is larger than that of the rear end of the core body.

Further, a large ring is arranged at the front end of the core body, and a small ring is arranged on the large ring.

Further, a plurality of small rings are arranged at the front end of the core body.

Further, the hardness of the second body is greater than the hardness of the first body.

Further, the core body comprises a third body, the third body is located at the rear end of the second body, and the diameter of the third body is larger than that of the second body.

The utility model provides a draw gear for endoscopic surgery, it includes first handle, sliding part, outer tube and draws the core, and the outer tube is located the front end of first handle, and the shaping has the sliding tray that can supply the sliding part to remove in the first handle, draws the core to pass the outer tube, draws the rear end of core to install in the sliding part.

Further, the sliding part is formed with a first through hole through which the traction core can pass.

Further, the traction core can be drawn out from the rear end of the sliding portion.

Furthermore, the front end shaping of sliding part has two first installation departments, has arranged the spacing portion of fourth between two first installation departments, and the spacing portion shaping of fourth has the second through-hole that can supply to draw the core to pass, and the spacing portion of fourth prevents to draw the core to deviate from the front end of sliding part.

Further, a fifth limiting part is arranged at the rear end of the sliding part and prevents the traction core from being separated from the rear end of the sliding part.

Further, a second mounting portion is disposed at a front end of the first handle, and the outer tube is disposed at the second mounting portion.

Further, the first handle comprises two first side plates which are oppositely arranged, and the area between the two first side plates is a sliding groove.

Furthermore, the rear ends of the two first side plates are connected into a whole.

Further, a bottom cover is arranged at the rear end of the first handle.

Furthermore, the inner wall of the front end of the outer tube is formed with a sixth limiting part.

The utility model provides a draw gear for endoscopic surgery, it includes third handle, outer tube and pulls the core, and the outer tube is located the front end of third handle, pulls the core and passes outer tube and third handle.

Further, a pull ring is arranged at the rear end of the traction core.

The utility model provides a draw gear for endoscopic surgery, it includes fourth handle, outer tube, inner tube and pulls the core, and the outer tube is located the front end of fourth handle, and the inner tube passes outer tube and fourth handle, pulls the core and passes the inner tube.

Furthermore, a seventh limiting part is formed at the rear end of the inner pipe.

Further, a hand-held part is installed at the rear end of the traction core.

Further, the hand-held part is formed with an installation groove for fixing the rear end of the traction core.

Has the advantages that: the traction core has structures with different thicknesses, the thicker part is harder and is convenient to push and pull, the thinner part is softer and is convenient to bend, and the safety of pushing and pulling is ensured; the sliding part is designed in the traction device, so that the traction core can be conveniently pushed and pulled in an operation; the traction device is provided with a traction core which sequentially penetrates through the outer tube and the third handle, the structure is simple and convenient to operate, and the traction core can be flexibly drawn out or inserted according to the operation requirement; the traction device is designed to realize multi-stage extension and retraction of the traction core, the inner tube and the outer tube, and the hardness of the outer tube and the bending of the front end of the traction core can be conveniently adjusted during operation. The utility model discloses rational in infrastructure, can more safe effectual realization tissue draw in order to expose the operation field of vision, effectual supplementary completion endoscopic surgery, but wide application in endoscopic surgery field.

Drawings

FIG. 1 is a block diagram of a traction core according to one embodiment;

FIG. 2 is a schematic view of a pulling core according to a second embodiment;

FIG. 3 is a schematic view of a pulling core according to a third embodiment;

FIG. 4 is a block diagram of a traction core according to a fourth embodiment;

FIG. 5 is a block diagram of the front end of a pulling core having large and small loops;

FIG. 6 is a block diagram of the front end of a pulling core having a plurality of small loops;

FIG. 7 is a block diagram of a draft gear according to an embodiment;

FIG. 8 is an exploded view of the structure of FIG. 7;

FIG. 9 is an internal structural view of a traction device according to an embodiment;

FIG. 10 is an exploded view of the traction device of the second embodiment;

FIG. 11 is an internal structural view of a traction device in accordance with a second embodiment;

FIG. 12 is a partial view of area A of FIG. 11;

FIG. 13 is a partial view of the area B in FIG. 11;

FIG. 14 is a block diagram of the first handle;

FIG. 15 is a left side view of the structure of FIG. 14;

FIG. 16 is a front view of the second mounting portion;

FIG. 17 is a left side view of the structure of FIG. 16;

FIG. 18 is a top view of the structure of FIG. 16;

FIG. 19 is a structural view of a second mounting portion;

FIG. 20 is a front view of the bottom cover;

FIG. 21 is a left side view of the structure of FIG. 20;

FIG. 22 is a top view of the structure of FIG. 20;

FIG. 23 is a view showing the construction of the bottom cover;

fig. 24 is a front view of the slide part;

FIG. 25 is a left side view of the structure of FIG. 24;

FIG. 26 is a top view of the structure of FIG. 24;

FIG. 27 is a structural view of a slide portion;

FIG. 28 is a structural view of a traction device in accordance with a third embodiment;

FIG. 29 is an exploded view of the structure of FIG. 28;

FIG. 30 is an internal structural view of a traction device in the third embodiment

FIG. 31 is a structural view of a traction device in accordance with a fourth embodiment;

FIG. 32 is an exploded view of the structure of FIG. 31;

FIG. 33 is an internal structural view of a traction device in accordance with a fourth embodiment;

FIG. 34 is a partial view of the area C of FIG. 33;

FIG. 35 is a partial view of the area D in FIG. 33;

FIG. 36 is a first schematic view of the head configuration as the traction device pulls tissue;

FIG. 37 is a second schematic view of the head configuration as the traction device pulls tissue;

fig. 38 is a structural view of the hand-held portion.

Detailed Description

The present invention will be further described with reference to fig. 1 to 38.

The utility model relates to a traction core, which is slender, elastic, bendable and not easy to deform. The traction core comprises a core body, the core body comprises a first body 11 and a second body 12, the second body 12 is located at the rear end of the first body 11, and the front end of the first body 11 is the front end of the core body. The length of the second body 12 is greater than the length of the first body 11, and the diameter of the second body 12 is greater than the diameter of the first body 11. The hardness of the second body 12 is greater than that of the first body 11, the first body 11 is soft and thin, the position of the traction tissue can be adjusted in a bending mode and the tissue can be prevented from being damaged conveniently during operation, and the second body 12 is hard, so that the traction core can be pushed conveniently during operation.

The diameters referred to in the present invention can be regarded as the diameter of a circle, and also as the diameter of the circumscribed circle of the described structure.

In some embodiments, the second body 12 is formed with a second position-limiting portion 13, and the diameter of the second position-limiting portion 13 is larger than that of the second body 12.

In some embodiments, the first body 11 is formed with a first position-limiting portion 14, and the diameter of the first position-limiting portion 14 is larger than that of the first body 11.

In some embodiments, the rear end of the core body is formed with a third position-limiting portion 15, the diameter of the third position-limiting portion 15 is larger than that of the rear end of the core body, in these embodiments, the rear end of the core body is the rear end of the second body 12, and the third position-limiting portion 15 is located at the rear end of the second body 12.

In some embodiments, the front end of the core body is arranged with a large loop 16, the large loop 16 is arranged with a small loop 17, and the large loop 16 is arranged at the front end of the first body 11.

In some embodiments, the front end of the core body is arranged with a plurality of small rings 17, each small ring 17 being arranged at the front end of the first body 11.

In some embodiments, the core body includes a third body 33, the third body 33 is located at the rear end of the second body 12, the diameter of the third body 33 is greater than the diameter of the second body 12, the hardness of the third body 33 is greater than the hardness of the second body 12, and the traction core is designed to be a multi-section structure with different hardness, so that the traction core is conveniently pushed during an operation, traction is effectively realized, and safety in the traction process is ensured. In these embodiments, the rear end of the core body is the rear end of the third body 33, and the third position-limiting part 15 is located at the rear end of the third body 33.

The utility model relates to a draw gear for endoscope operation, draw gear is used for pulling the tissue. Draw gear includes first handle, sliding part 18, outer tube 19 and draws the core, and outer tube 19 is located the front end of first handle, and the external diameter of outer tube 19 is less has elasticity, and is flexible, is difficult to be shriveled because of the pressurized, and the shaping has the sliding tray that can supply sliding part 18 to remove in the first handle, draws the core to pass outer tube 19, draws the rear end of core to install in sliding part 18. The sliding part 18 moves in the sliding groove to drive the traction core to stretch out and draw back in the outer tube 19, the first body 11 of the traction core can extend out of the front end of the outer tube 19, the traction core is fixed with a tissue needing traction through the endoscope tissue clamp, and the traction core is regulated and controlled in real time through the sliding part 18 to pull or push the tissue of an operation position so as to expose an operation wound.

In the first embodiment, the second body 12 of the traction core is formed with the second position-limiting portion 13, and the diameter of the second position-limiting portion 13 is larger than the diameter of the second body 12.

In the first embodiment, the sliding portion 18 is formed with a first through hole for the pulling core to pass through, and the rear end of the pulling core is located in the first through hole, where the rear end of the pulling core is the rear end of the second body 12. The diameter of the second stopper 13 is smaller than that of the first through hole, so that the front end of the pulling core can be inserted into the rear end port of the first through hole, and the rear end of the pulling core can be extracted from the rear end of the sliding portion 18. Because the traction core can be inserted and extracted in real time, the traction core can be extracted or inserted according to the requirement during the operation, and the traction core with other specifications can be replaced after extraction, so as to adapt to the requirement of the operation. In addition, because the traction core has certain hardness, for some surgical sites, such as deep colon, in order to ensure the operation safety, the traction core can be firstly drawn out, the outer tube is firstly placed into the deep colon, and then the traction core is inserted into the outer tube, thereby avoiding the risk of conveying the traction device.

In the first embodiment, the front end of the sliding part 18 is formed with two first mounting parts 20, and the two first mounting parts 20 are respectively located at two sides of the front end port of the first through hole. A fourth limiting portion 21 is disposed between the two first mounting portions 20, and third through holes for mounting the end portions of the fourth limiting portion 21 are respectively formed in the two first mounting portions 20. The fourth limiting portion 21 is formed with a second through hole for the traction core to pass through, and after the traction core passes through the second through hole, the second limiting portion 13 is located between the front end of the sliding portion 18 and the fourth limiting portion 21. The diameter of the second through hole is smaller than that of the second stopper portion 13, and the fourth stopper portion 21 prevents the traction core from coming off the front end of the sliding portion 18.

In the first embodiment, the fifth limiting portion 22 is disposed at the rear end of the sliding portion 18, the fifth limiting portion 22 is mounted at the rear end of the sliding portion 18 in a threaded or buckled or sleeved manner, the fifth limiting portion 22 is located at a port at the rear end of the first through hole, and the fifth limiting portion 22 prevents the traction core from coming off from the rear end of the sliding portion 18. The traction core can be drawn out after the fifth limiting part is removed, and the rear end of the traction core can be limited in the sliding part 18 after the fifth limiting part is installed.

In one embodiment, the fifth limiting portion 22 can be designed as a cap, and a sleeve 36 is formed at the rear end of the sliding portion 18, and the cap is sleeved on the sleeve 36.

In the first embodiment, the front end of the first handle is provided with the second mounting part 23, the outer tube 19 is arranged on the second mounting part 23, and the rear end of the outer tube 19 is mounted on the front end of the second mounting part 23 in a threaded manner.

In the first embodiment, the first handle includes two first side plates 24, the two first side plates 24 are oppositely arranged, and the area between the two first side plates 24 is a sliding groove. The front parts of the two first side plates 24 are fixed with the second mounting part 23 through buckles respectively, the rear ends of the two first side plates 24 are connected into a whole, and the rear ends of the two first side plates connected into a whole are formed with through holes for the traction cores to pass through.

In the first embodiment, the bottom cover 25 is disposed at the rear end of the first handle, the bottom cover 25 is a hollow structure, the bottom cover 25 is mounted with the rear end of the first handle in a buckling or threaded manner, and the bottom cover 25 is formed with a through hole through which the traction core can pass.

In the first embodiment, the front end of the traction core is provided with a large ring 16, and the large ring 16 is provided with a small ring 17. Because the small ring 17 clamped on the large ring 16 by the endoscope clamp is not easy to slip, after the traction device is conveyed into the body, the small ring 17 is clamped by the endoscope clamp, and the traction device is quickly conveyed to the position of the tissue to be traction and is fixed, so the small ring 17 plays a role in guiding and pre-fixing. The macrocycle 16 is then secured by endoscopic clips to the tissue requiring distraction to effect further distraction.

In one embodiment, it is also possible to arrange a plurality of small loops 17 at the front end of the traction core.

In the second embodiment, the traction device is additionally provided with the following structure on the basis of the first embodiment: a sixth limiting part 26 is formed on the inner wall of the front end of the outer tube 19, the sixth limiting part 26 is an annular structure with a through hole, and the first body 11 passes through the through hole of the sixth limiting part 26; the first body 11 is formed with a first position-limiting portion 14, the diameter of the first position-limiting portion 14 is greater than that of the first body 11, the diameter of the first position-limiting portion 14 is greater than that of a through hole of a sixth position-limiting portion 26, and an end surface of the sixth position-limiting portion 26 facing the front end port of the outer tube 19 is used for propping against the first position-limiting portion 14.

When the traction device in the second embodiment is used, the sliding part 18 is moved backwards, and after the first limiting part 14 abuts against the sixth limiting part 26, the sliding part 18 is continuously moved backwards, and the traction core can drive the front end of the outer tube 19 to bend, so that the diversity of the directions of traction tissues during surgery can be increased, and effective tissue traction is realized.

The utility model relates to a draw gear for endoscopic surgery, this can be regarded as embodiment three. The traction device comprises a third handle 27, an outer tube 19 and a traction core, wherein the outer tube 19 is located at the front end of the third handle 27, the outer tube 19 is installed at the front end of the third handle 27 in a threaded mode, the traction core penetrates through the outer tube 19 and the third handle 27, a pull ring 28 is arranged at the rear end of the traction core, and the traction core can be pulled to freely stretch and retract through the pull ring 28.

In the third embodiment, the front end of the traction core is provided with a large ring 16, and the large ring 16 is provided with a small ring 17. Or it can be designed that a plurality of small rings 17 are arranged at the front end of the traction core.

In the third embodiment, the core body includes the third body 33, the third body 33 is located at the rear end of the second body 12, the diameter of the third body 33 is larger than that of the second body 12, and the hardness of the third body 33 is larger than that of the second body 12. The traction core is designed to be of a structure with multiple sections of different hardness, the harder second body and the harder third body facilitate pushing the traction core during surgery, and the softer first body ensures the safety of the traction process.

The utility model relates to a draw gear for endoscopic surgery, this can be regarded as embodiment four. The traction device comprises a fourth handle 29, an outer tube 19, an inner tube 30 and a traction core, wherein the outer tube 19 is positioned at the front end of the fourth handle 29, the inner tube 30 penetrates through the outer tube 19 and the fourth handle 29, and the traction core penetrates through the inner tube 30. The multi-stage expansion and contraction are realized by designing the inner pipe 30, and the hardness of the outer pipe and the bending of the front end of the traction core are adjusted by the telescopic inner pipe 30.

In the fourth embodiment, the rear end of the inner tube 30 is formed with the seventh stopper 31, the diameter of the seventh stopper 31 is larger than the diameter of the through hole of the fourth handle 29, and the seventh stopper 31 prevents the rear end of the inner tube 30 from entering the fourth handle 29.

In the fourth embodiment, the rear end of the core body is formed with the third position-limiting portion 15, and the diameter of the third position-limiting portion 15 is larger than the diameter of the rear end of the core body. The rear end of the traction core is provided with a handheld part 32, the handheld part 32 is formed with a mounting groove 34 for fixing the rear end of the traction core, the side wall of the mounting groove 34 is formed with a step surface 35, and after the third limiting part 15 is inserted from one end of the mounting groove 34, the step surface 35 is abutted against the third limiting part 15, so that the third limiting part 15 can only be taken out from the port of the mounting groove 34.

In the fourth embodiment, the core body includes the third body 33, the third body 33 is located at the rear end of the second body 12, the diameter of the third body 33 is greater than the diameter of the second body 12, the hardness of the third body 33 is greater than the hardness of the second body 12, and the traction core is designed to be a structure with multiple sections of different hardness, so that the traction core is convenient to push during operation.

In the fourth embodiment, the front end of the traction core is provided with a large ring 16, and the large ring 16 is provided with a small ring 17. Or it can be designed that a plurality of small rings 17 are arranged at the front end of the traction core.

In the traction devices of the four embodiments, the front end of the traction core is thin, the other parts of the traction core are thick, and a small ring is designed to realize effective tissue traction.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The traction core is characterized in that: the novel core comprises a core body, wherein the core body comprises a first body (11) and a second body (12), the second body (12) is located at the rear end of the first body (11), and the diameter of the second body (12) is larger than that of the first body (11).

2. The traction core of claim 1, wherein: the second body (12) is formed with a second limiting part (13), and the diameter of the second limiting part (13) is larger than that of the second body (12).

3. The traction core of claim 1, wherein: the first body (11) is formed with a first limiting part (14), and the diameter of the first limiting part (14) is larger than that of the first body (11).

4. The traction core of claim 1, wherein: the rear end of the core body is formed with a third limiting part (15), and the diameter of the third limiting part (15) is larger than that of the rear end of the core body.

5. The traction core of claim 1, wherein: the front end of the core body is provided with a large ring (16), and the large ring (16) is provided with a small ring (17).

6. The traction core of claim 1, wherein: a plurality of small rings (17) are arranged at the front end of the core body.

7. The traction core of claim 1, wherein: the hardness of the second body (12) is greater than the hardness of the first body (11).

8. The traction core of claim 1, wherein: the core body comprises a third body (33), the third body (33) is positioned at the rear end of the second body (12), and the diameter of the third body (33) is larger than that of the second body (12).

9. Traction device for endoscopic surgery, characterized in that: comprising a first handle, a sliding part (18), an outer tube (19) and a traction core according to any one of claims 1 to 8, the outer tube (19) being located at the front end of the first handle, the first handle having a sliding slot formed therein for the sliding part (18) to move, the traction core passing through the outer tube (19), the rear end of the traction core being mounted on the sliding part (18).

10. The traction device for endoscopic surgery according to claim 9, characterized in that: the sliding part (18) is formed with a first through hole through which the traction core can pass.

11. The traction device for endoscopic surgery according to claim 10, characterized in that: the traction core can be drawn out from the rear end of the sliding part (18).

12. The traction device for endoscopic surgery according to claim 10, characterized in that: the front end shaping of sliding part (18) has two first installation department (20), has arranged spacing portion (21) of fourth between two first installation department (20), and spacing portion (21) of fourth shaping has the second through-hole that can supply the traction core to pass, and spacing portion (21) of fourth prevents to pull the core and deviate from the front end of sliding part (18).

13. The traction device for endoscopic surgery according to claim 12, characterized in that: the rear end of the sliding part (18) is provided with a fifth limiting part (22), and the fifth limiting part (22) prevents the traction core from being separated from the rear end of the sliding part (18).

14. The traction device for endoscopic surgery according to claim 9, characterized in that: a second mounting portion (23) is disposed at the front end of the first handle, and an outer tube (19) is disposed at the second mounting portion (23).

15. The traction device for endoscopic surgery according to claim 9, characterized in that: the first handle comprises two first side plates (24), the two first side plates (24) are oppositely arranged, and the area between the two first side plates (24) is a sliding groove.

16. The traction device for endoscopic surgery according to claim 15, characterized in that: the rear ends of the two first side plates (24) are connected into a whole.

17. The traction device for endoscopic surgery according to claim 9, characterized in that: the rear end of the first handle is provided with a bottom cover (25).

18. The traction device for endoscopic surgery according to claim 9, characterized in that: a sixth limiting part (26) is formed on the inner wall of the front end of the outer tube (19).

19. Traction device for endoscopic surgery, characterized in that: comprising a third handle (27), an outer tube (19) and a pulling core according to claim 1 or 5 or 6 or 7 or 8, the outer tube (19) being located at the front end of the third handle (27) and the pulling core passing through the outer tube (19) and the third handle (27).

20. The traction device for endoscopic surgery according to claim 19, characterized in that: a pull ring (28) is arranged at the rear end of the traction core.

21. Traction device for endoscopic surgery, characterized in that: comprising a fourth handle (29), an outer tube (19), an inner tube (30) and a pulling core according to claim 1 or 4 or 5 or 6 or 7 or 8, the outer tube (19) being located at the front end of the fourth handle (29), the inner tube (30) passing through the outer tube (19) and the fourth handle (29), the pulling core passing through the inner tube (30).

22. The traction device for endoscopic surgery according to claim 21, characterized in that: the rear end of the inner tube (30) is formed with a seventh stopper (31).

23. The traction device for endoscopic surgery according to claim 21, characterized in that: a hand-held part (32) is arranged at the rear end of the traction core.

24. The traction device for endoscopic surgery according to claim 23, characterized in that: the hand-held part (32) is formed with a mounting groove (34) for fixing the rear end of the traction core.