WO2023088101A1

WO2023088101A1 - Unlocking structure capable of being unlocked with one hand, sleeve assembly, and puncture device

Info

Publication number: WO2023088101A1
Application number: PCT/CN2022/129366
Authority: WO
Inventors: 樊友平; 倪前龙; 托马斯·梅里翁·里斯; 杨海龙; 居朝永; 陈伟理; 刘兵
Original assignee: 上海质昱医疗器械有限公司; 基美实业国际有限公司
Priority date: 2021-11-17
Filing date: 2022-11-02
Publication date: 2023-05-25
Also published as: CN113907855A

Abstract

An unlocking structure capable of being unlocked with one hand, the unlocking structure comprising: a limiting column (221), a shifting table (222) and a clamping table (223), which are arranged on a sealing base (22) of a sealing body component (20); a clamping slot (321) provided in a duckbill cover (32) of a sleeve component (30); and an elastic release button (33), wherein the release button (33) comprises a limiting table (331), a button (332) and an unlocking block (333); the limiting table (331) is provided with a limiting table clamping slot (3311) and a limiting table slideway (3312); a gap allowing the limiting column (221) to pass therethrough is formed among the limiting table (331), the button (332) and the unlocking block (333); and the limiting column (221) can enter the limiting table clamping slot (3311) along the limiting table slideway (3312) to form a locking state, and can also be separated from the limiting table clamping slot (3311) when pushed and pressed by the unlocking block (333) so as to return to the limiting table slideway (3312) to form an unlocking state. Further comprised are a sleeve assembly which can be unlocked with one hand, and a puncture device. By using the elastic release button (33) and the shifting table (222), when the sleeve component (30) is held with one hand, a user can press the release button (33) with his/her thumb and shift the shifting table (222) with his/her index finger so as to unlock the sleeve assembly (30); and the release button (33) has a simple structure, and the manufacturing and installation costs are low.

Description

An unlocking structure capable of unlocking with one hand, a cannula assembly and a trocar

technical field

The invention belongs to the field of minimally invasive surgical instruments, and is a detachable sleeve assembly, in particular an unlocking structure capable of being unlocked with one hand, a sleeve assembly and a trocar.

Background technique

Trocars are often used in existing minimally invasive surgeries. The trocar is usually composed of an obturator assembly, a sealing body part and a sleeve part, for example, a trocar disclosed in US20060264992A1 includes an obturator assembly, a sealing body part and a sleeve part. In addition, CN200410092156.3 also discloses a A similar type of piercer. When the trocar of the prior art punctures, the occluder assembly is inserted into the cannula assembly (composed of the sealing body part and the cannula part), and used as a whole. After being inserted into the abdomen of the human body, the occluder assembly is taken out, and then the surgical instrument To perform a surgical operation through the cannula assembly, the seal body part needs to be released from the cannula part when necessary. At present, the method for releasing the sealing body part in the prior art is generally that the doctor holds the casing part with one hand and twists the sealing body part with the other hand, and then the sealing body part is unlocked, and then other operations are performed to release the sealing body part. The process is difficult for doctors to operate with one hand.

In order to solve the problems of the trocar described above, Chinese patent CN209789968U proposes a lock ring structure that can be pressed and unlocked with one hand. The lock ring structure is applied to the trocar. Press the handle down with the thumb, so that the sealing body part is separated from the bushing part, and the unlocking of the bushing assembly is completed. But this prior art still has the following problems: 1. Only the thumb is moving during the unlocking process of the sleeve assembly, and the button assembly needs to be pressed down and the sealing body parts should be rotated, which requires the doctor who uses the sleeve assembly to The cannula assembly can only be unlocked with a sufficiently large thumb pressing force, and it is difficult for doctors with insufficient thumb pressing force to complete the unlocking operation in actual operation; 2. The button assembly is relatively complicated, which makes the cost in the manufacturing and assembly process relatively high.

Contents of the invention

In view of the above-mentioned problems existing in the prior art, the object of the present invention is to provide an unlocking structure that can be unlocked with one hand, through the user's thumb and other fingers cooperating with pinching and pressing force, the sealing body part and sleeve of the puncturer can be quickly realized. One-handed unlocking of tube parts.

The technical solution of the present invention is: an unlocking structure that can be unlocked with one hand, comprising:

A limit column, a toggle platform and a clamping platform arranged on the sealing seat of the sealing body part;

The locking slot and the elastic release button are arranged on the duckbill cover of the casing part, and the release button includes a limiting platform, a button and an unlocking block, and the limiting platform is provided with a limiting platform card slot and a limiting platform slideway, the unlocking block is obliquely arranged on the button;

There is a gap between the limiting platform, the button and the unlocking block through the limiting column, and the limiting column can enter the slot of the limiting platform along the slideway of the limiting platform to form a gap between the sealing body part and the sleeve part. In the locked state, under the push of the unlocking block, it can also disengage from the clamping slot of the limiting platform and return to the slideway of the limiting platform, forming an unlocked state of the sealing body part and the casing part.

The clamping platform cooperates with the clamping groove, and when the sealing body part and the casing part are in a locked state, the clamping platform enters into the clamping slot of the clamping groove; when the sealing body part When the sleeve part is in an unlocked state, the clamping table is separated from the clamping slot of the clamping slot.

Further, there are 3 clamping platforms, which are respectively arranged on the inner surface of the inner hole of the lower part of the sealing seat; there are 3 said clamping slots, which are respectively arranged on the outer surface of the upper ring of the duckbill cover; the inner hole of the lower part of the sealing seat and the The upper ring of the duckbill cover matches, and each card slot has a corresponding card slot.

Further, the bottom of each locking groove is provided with a locking groove for locking the limiting column.

Further, the release button includes a limit platform, a button, an unlocking block, an elastic beam and a positioning sleeve. The two ends of the beam; the limiting platform is a "herringbone"-shaped boss, and its side has adjacent limiting platform card slots and limiting platform slideways.

Further, the limit platform of the release button, the button, the unlocking block, the elastic beam and the positioning sleeve are made in one piece.

Further, the material of the release button is plastic.

Another object of the present invention is to provide a sleeve assembly that can be unlocked with one hand, which includes a sealing body part and a sleeve part, and the lower inner hole of the sealing body part can be sleeved on the outer ring of the upper part of the sleeve On the side, the above-mentioned unlocking structure that can be unlocked with one hand is provided on the sealing body part and the sleeve part.

Another object of the present invention is to provide a piercer that can be unlocked with one hand, which includes an obturator assembly, a sealing body part and a sleeve part, and the lower inner hole of the sealing body part can be sleeved on the upper circle of the sleeve part. On the outer surface of the ring, the sealing body part and the sleeve part are provided with the unlocking structure that can be unlocked with one hand.

Advantages of the present invention: 1. Due to the use of the elastic release button and the toggle platform, the user can use the thumb and other fingers to relatively pinch the release button to unlock the sleeve assembly when holding the sleeve component with one hand. Toggling makes the sealing body part separate from the sleeve part, and both the thumb and the forefinger come in handy, and the thumb force required for unlocking is small, which reduces the burden on the user. 2. The unlocking block on the button can push the limit column to break away from the slot of the limit platform to the slideway of the limit platform, and the sealing body part and the sleeve part can be unlocked without the need for the index finger to move. 3. The structure of the release button is simple, and the manufacturing and installation costs are low.

Description of drawings

Fig. 1 is a schematic structural view of the sealing body part of an embodiment of the unlocking structure capable of unlocking with one hand in the present invention.

Fig. 2 is a schematic structural view of the sleeve part of an embodiment of the unlocking structure capable of being unlocked with one hand in the present invention.

Fig. 3 is a structural schematic diagram of a release button of an embodiment of the unlocking structure capable of being unlocked with one hand in the present invention.

Fig. 4 is a schematic structural view of an embodiment of the trocar that can be unlocked with one hand according to the present invention.

Among them: 10-blocker assembly, 20-seal body parts, 21-seal cover, 22-seal seat, 221-limit post, 222-toggle table, 223-slot table, 30-sleeve parts, 31- Sleeve, 32-duckbill cover, 321-card slot, 3211-slide, 3212-card slot, 33-release button, 331-limit table, 3311-limit table card slot, 3312-limit Position platform slideway, 3313-highest point, 332-button, 333-unlock block, 3331-unlock slideway, 334-elastic beam, 335-positioning sleeve.

Detailed ways

The unlocking structure capable of being unlocked with one hand, the cannula assembly and the puncture device of the present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of a sealing body part 20 of an embodiment of the unlocking structure that can be unlocked with one hand in the present invention. Connected as a whole, a toggle table 222 is arranged on the outer surface of the lower part of the sealing seat 22, and its shape is suitable for pushing by the user's index finger, which can be semi-cylindrical, semi-prism, triangular cone or other protruding shape. The inner surface of the lower part of the sealing seat 22 forms a hollow inner hole, and more than one preferably three clamping stations 223 are evenly arranged on the inner hole wall near the lower edge of the sealing seat 22, and are used for snapping or even locking the sealing body part 20. Stop on the sleeve part 30. A limiting post 221 extending from the lower edge of the sealing seat 22 is also provided on the wall of the inner hole for locking or unlocking the sealing body part 20 on the sleeve part 30 .

Fig. 2 is a schematic structural view of a casing part 30 of an embodiment of the unlocking structure capable of being unlocked by one hand in the present invention, the casing part 30 includes a lower slender threaded pipe, an upper casing 31 and a top duckbill cover 32, The top of the duckbill cover 32 is provided with a circular ring, and more than 1 preferably 3 locking grooves 321 are evenly arranged on the outer peripheral surface of the circular ring. The locking groove 321 includes a slideway 3211 and a locking groove 3212. The channel 3211 is used to accommodate the limiting column 221 on the sealing seat 22 and provide a channel for the limiting column 221 to enter into the locking groove and the locking groove 3212;

There is a notch on the outer surface of the lower part of the duckbill cover 32 for installing the release button 33 ;

As shown in FIG. 3 , it is a structural schematic diagram of a release button 33 of an embodiment of the unlocking structure that can be unlocked with one hand in the present invention. The release button 33 includes a limiter 331 , a button 332 , an unlocking block 333 , an elastic beam 334 and a positioning sleeve 335 , the limiting platform 331, the button 332 and the unlocking block 333 are arranged in the middle of the elastic beam 334, and the two positioning sleeves 335 are respectively arranged at the two ends of the elastic beam 334; the limiting platform 331 is a "herringbone" shaped boss, and its side It has an adjacent limiting platform slot 3311 and a limiting platform slideway 3312 . There is a circular arc transition between the limiting platform slot 3311 and the limiting platform slideway 3312 , and has a highest point 3313 .

The release button 33 is installed in the gap on the lower outer surface of the duckbill cover 32 , and the positioning sleeves 335 on both sides of the release button 33 are inserted into two positioning posts (not shown) in the gap respectively. In order to prevent the volume occupied by the positioning sleeve 335 from being too large, the positioning sleeve 334 can be made into a truncated cylindrical shape. In addition, in order to allow the elastic release button 33 to have a deformation space in the gap of the duckbill cover 32, the size of the positioning sleeve 335 is slightly larger than the size of the positioning column, for example, the larger size is between 0.5mm-2mm.

The spacer 331 of the release button 33, the button 332, the unlocking block 333, the elastic beam 334 and the positioning sleeve 335 can be a combination of a plurality of discrete parts, or can be made in one piece, preferably cast from a plastic mold.

The present invention also provides a sleeve assembly that can be unlocked with one hand, which includes a sealing body part 20 and a sleeve part 30 , the lower inner hole of the sealing body part 20 can be sleeved on the outer surface of the upper ring of the sleeve part 30 Above, the sealing body part 20 and the sleeve part 30 are provided with an unlocking structure that can be unlocked with one hand.

As shown in Figure 4, a piercer that can be unlocked with one hand is provided by the present invention, which includes an obturator assembly 10, a sealing body part 20 and a sleeve part 30, and the lower inner hole of the sealing body part 20 can be sleeved on the sleeve. On the outer surface of the upper ring of the pipe part 30, the sealing body part 20 and the sleeve part 30 are provided with an unlocking structure capable of unlocking with one hand.

A typical implementation process of the unlocking structure that can be unlocked with one hand in the present invention is described as follows:

1. Locking of the casing part and the sealing body part: the three locking platforms 223 of the sealing seat 22 are aligned with the slideways 3211 of the three locking grooves 321 of the duckbill cover 32 and put into the duckbill cover 32, and the limit column 221 is in close contact with the limit platform slideway 3312; then the seal seat 22 is rotated clockwise, so that the clamping platform 223 is snapped into the clamping slot 3212; at the same time, the limit post 221 squeezes the limit platform slideway 3312, The release button 33 is deformed by force and moves inward until the limit column 221 exceeds the highest point 3313 of the limit platform 331; at this time, the pressing force on the release button 33 disappears and rebounds to the original position, so that the limit column 221 snaps into the slot 3311 of the limiter, and the sleeve part 30 and the sealing body part 20 are locked.

2. Unlocking of sleeve parts and sealing body parts: hold the sleeve assembly 30 with one hand, and press the button 332 of the release button 33 with the thumb, so that the release button 33 moves inward until the highest point 3313 of the limiter exceeds the limit. position post 221, at this moment, the limit platform 331 is disengaged from the limit post 221; The movement of the clockwise rotation increases the strength of the limit column 221 to turn over the highest point 3313 of the limit platform, so that the 221 limit column and the limit platform 331 are disengaged faster; then use the index finger to move the toggle platform 222 counterclockwise, The sealing seat 22 is rotated counterclockwise until the locking platform 223 is completely disengaged from the locking slot 3212 , at this time, the sleeve component 30 and the sealing body component 20 are unlocked.

Having described various embodiments of the present invention, the foregoing description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and alterations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims

An unlocking structure that can be unlocked with one hand, characterized in that it includes:

A limiting column (221), a toggle table (222) and a clamping table (223) arranged on the sealing seat (22) of the sealing body part (20);

The locking groove (321) and the elastic release button (33) arranged on the duckbill cover (32) of the sleeve part (30), the release button (33) includes a limiting platform (331), a button ( 332) and an unlocking block (333), the limiting platform (331) is provided with a limiting platform card slot (3311) and a limiting platform slideway (3312), and the unlocking piece (333) is obliquely arranged on the button (332) on;

There is a gap between the limiting platform (331) and the button (332) and unlocking block (333) through the limiting column (221), and the limiting column (221) can move along the limiting platform slideway (3312 ) enters into the clamping groove (3311) of the limiting platform to form a locked state between the sealing body part (20) and the casing part (30), and can also be locked from the limiting platform under the push of the unlocking block (333). The groove (3311) is disengaged and returned to the limit platform slideway (3312), forming an unlocked state of the sealing body part (20) and the casing part (30).
The unlocking structure that can be unlocked with one hand as claimed in claim 1, characterized in that there are three locking platforms (223), which are respectively arranged on the inner surface of the lower inner hole of the sealing seat (22); Groove (321) has 3, is arranged on the outer surface of duckbill cover (32) top annulus respectively; Sealing seat (22) bottom endoporus matches with duckbill lid (32) top annulus, each clamping platform ( 223) has a corresponding card slot (321).
The unlocking structure that can be unlocked with one hand as claimed in claim 2, characterized in that, the bottom of each locking groove (321) is provided with a locking groove for locking the locking platform (223) ( 3212).
The unlocking structure that can be unlocked with one hand according to claim 1, characterized in that, the release button (33) includes a limit table (331), a button (332), an unlocking block (333), and an elastic beam (334) and the positioning sleeve (335), the limit platform (331), the button (332) and the unlocking block (333) are arranged in the middle of the elastic beam (334), and the two positioning sleeves (335) are respectively arranged on the elastic beam The two ends of (334); the limiting platform (331) is a "herringbone"-shaped boss, and its side has adjacent limiting platform slots (3311) and limiting platform slideways (3312).
The unlocking structure that can be unlocked with one hand according to any one of claims 1-4, characterized in that, the limit platform (331), button (332), unlocking block (333), elastic Beam (334) and positioning sleeve (335) are made as one.
The unlocking structure that can be unlocked with one hand according to any one of claims 1-4, characterized in that the material of the release button (33) is plastic.
A sleeve assembly that can be unlocked with one hand is characterized in that it includes a sealing body part (20) and a sleeve part (30), and the lower inner hole of the sealing body part (20) can be sleeved on the sleeve part ( 30) On the outer surface of the upper ring, the sealing body part (20) and the casing part (30) are provided with the unlocking structure capable of unlocking with one hand according to any one of claims 1-6.
A piercer that can be unlocked with one hand is characterized in that it includes an obturator assembly (10), a sealing body part (20) and a sleeve part (30), and the lower inner hole of the sealing body part (20) can be sleeved on the On the outer surface of the upper ring of the casing part (30), the sealing body part (20) and the casing part (30) are provided with an unlocking structure capable of unlocking with one hand as described in any one of claims 1-6.