A gallbladder stone suction extraction device

Abstract

The application discloses a gallbladder stone suction and extraction device, which comprises a tubular body, an open front end of the body forms a stone storage space, a rear end of the body forms a connecting end, the connecting end is provided with a negative pressure channel communicated with the stone storage space, the body surrounds the stone storage channel to form an adjusting channel, and a sealing seat is in sealing sliding connection with the stone storage channel; an adjusting seat is located in the adjusting channel and slides along the length direction of the adjusting channel; an elastic film is annular, one end of the elastic film is sleeved with the adjusting channel and connected with the adjusting seat, the other end of the elastic film is connected with the sealing seat, and the elastic film is provided with a plurality of through holes; and a negative pressure source is connected with the connecting end, the negative pressure source provides negative pressure to the stone storage space through the negative pressure channel, the stones are adsorbed through the through holes and resist the elastic film, the negative pressure source cooperates with the elastic film to realize the fixation and transfer of the stones, the stones are temporarily stored through the stone storage channel, the continuous stone extraction is realized, and the stone extraction effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gallstones, in particular to a gallstone suction and removal device. BACKGROUND

[0002] With the increasing improvement of people's living standards, most people suffer from gallstone disease due to unhealthy exercise and diet, and the incidence of gallstone disease in China is increasing year by year. For the treatment of gallstone, minimally invasive stone extraction is usually used to minimize the harm to patients.

[0003] Among them, gallstone generally includes single gallstone and multiple gallstones, and for large size gallstones, the basket method is generally used for removal, and for multiple small size and large number of stones, the basket or clamp method will result in extremely low stone extraction efficiency, thereby prolonging the operation time and greatly testing the physical strength of medical staff, and thus needs to be improved. SUMMARY

[0004] In view of the deficiencies in the prior art, the purpose of the present application is to provide a gallstone suction and removal device which can realize continuous stone extraction to speed up the stone extraction efficiency and reduce the pain of patients.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A gallstone suction and removal device comprises:

[0007] A tubular body, the front end of the body is open to form a stone storage space, the rear end of the body forms a connection end, the connection end is provided with a negative pressure channel communicating with the stone storage space, the body surrounds the stone storage space to form an adjustment channel, and the adjustment channel corresponds to the front end of the body to form an opening;

[0008] A sealing seat, the sealing seat is sealed and slides with the stone storage space;

[0009] An adjustment seat, the adjustment seat is located in the adjustment channel and slides along the length direction of the adjustment channel;

[0010] An elastic membrane, the elastic membrane is annular, one end of the elastic membrane is sleeved with the adjustment channel and connected with the adjustment seat, the other end is connected with the sealing seat, and the elastic membrane is arranged with through holes;

[0011] A negative pressure source, the negative pressure source is connected with the connection end, the negative pressure source provides negative pressure to the stone storage space through the negative pressure channel, and the negative pressure source is connected with the connection end;

[0012] When the adjustment seat moves towards the front end of the body, the elastic membrane drives the gallstones to move towards the bottom of the stone storage space.

[0013] As a further improvement of the application, the limiting surface is arranged in the stone storage space, and the stone storage space is divided into an adsorption area and a stone storage area by the limiting surface, the adsorption area and the stone storage area are arranged along the front and back of the body, the sealing seat is located in the stone storage area, one end of the negative pressure channel is communicated with the adsorption area, a passage is arranged in the body and communicated with the negative pressure channel and the bottom of the stone storage area, the negative pressure source provides negative pressure to the stone storage area through the passage to drive the sealing seat to move to the bottom of the stone storage area, and a pressure regulating hole is arranged on the sealing seat and communicated with the stone storage area and the adsorption area.

[0014] As a further improvement of the application, one end of the elastic film is provided with a fixing ring, the adjusting seat is provided with a fixing groove corresponding to the fixing ring and is clamped with the fixing ring, and the end of the elastic film away from the fixing ring is folded and provided with a fixing ring.

[0015] As a further improvement of the application, the adjusting channel forms an adjusting opening corresponding to the rear end of the body, the adjusting seat is connected with an elastic card, one end of the elastic card is connected with the adjusting seat along the adjusting opening, the other end of the elastic card is inclined away from the body, and a clamping block is arranged on the elastic card.

[0016] As a further improvement of the application, the front end of the body forms an arc-shaped attaching surface corresponding to the stone storage space, and the elastic film covers the attaching surface.

[0017] As a further improvement of the application, the negative pressure channel is inclined away from each other at both ends.

[0018] As a further improvement of the application, the rear end of the body is connected with a filter unit, and the filter unit comprises filter cotton.

[0019] As a further improvement of the application, the filter unit comprises a ring-shaped mounting seat, the mounting seat is threadedly connected with the rear end of the body, and a supporting net is arranged on the mounting seat and supports the filter cotton through the supporting net.

[0020] The application has the following beneficial effects:

[0021] 1. The negative pressure source cooperates with the elastic film to fix and transfer the stones, so that the stones are temporarily stored in the stone storage space, the continuous stone extraction is realized, the stone extraction effect is greatly improved, the pain of the patient is reduced, and the postoperative recovery is improved.

[0022] 2. The elastic film transfer mode cooperates with the negative pressure source to ensure the stability of the stones in the stone storage space through the elastic retraction of the elastic film and the negative pressure in the repeated stone extraction process, so that the stones in the stone storage space are prevented from falling off in the repeated stone extraction process.

[0023] 3、Through the elastic film transfer matching negative pressure mode can avoid the defect such as clamping that is easy to cause stone rupture, and then the stone extraction process is guaranteed to the greatest extent to ensure the integrity of the stone, so as to improve the stone extraction effect;

[0024] 4、The whole structure is simple and reliable, and the shaft diameter is small, so that the minimally invasive surgery is met. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 It is a schematic diagram of the whole installation profile of the present application;

[0026] Fig. 2 It is a schematic diagram of the elastic film of the present application.

[0027] The figure mark: 1, the body; 2, the stone storage space; 3, the connecting end; 4, the negative pressure channel; 5, the adjusting channel; 6, the opening; 7, the sealing seat; 8, the adjusting seat; 9, the elastic film; 10, the through hole; 11, the negative pressure source; 12, the limiting surface; 13, the adsorption area; 14, the stone storage area; 15, the passage; 16, the fixed ring; 17, the fixed ring; 18, the adjusting port; 19, the elastic card; 20, the clamping block; 21, the attached surface; 22, the filter cotton; 23, the mounting seat; 24, the support net. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in combination with the drawings and examples. Wherein the same parts are indicated by the same reference signs.

[0029] As shown in the drawings, Figs. 1-2 A gallbladder stone suction and extraction device, comprising a tubular body 1, the front end of the body 1 is open to form a stone storage space 2, and the front end of the body 1 is formed with a curved surface to facilitate entry into the human body, and the rear end of the body 1 is formed with a connecting end 3, the connecting end 3 is provided with a negative pressure channel 4 in communication with the stone storage space 2, the body 1 is formed with an adjusting channel 5 around the stone storage space 2, and the adjusting channel 5 is formed with an opening 6 corresponding to the front end of the body 1.

[0030] Further, it further comprises a sealing seat 7, the sealing seat 7 is sealed and slides with the stone storage space 2, specifically, in the embodiment, the sealing seat 7 is provided with a rubber ring in the circumferential direction, and the sealing and sliding with the stone storage space 2 is realized by the deformation of the rubber ring.

[0031] Further, it further comprises an adjusting seat 8, which is annular, and the adjusting seat 8 is located in the adjusting channel 5 and slides along the length direction of the adjusting channel 5.

[0032] Further, it further comprises an elastic film 9, which is annular, one end of the elastic film 9 is sleeved with the adjusting channel 5 and connected with the adjusting seat 8, and the other end is connected with the sealing seat 7, so that the elastic film 9 covers the front end of the stone channel, and the elastic film 9 is arranged with a through hole 10.

[0033] Further, a negative pressure source 11 is connected with the connecting end 3. In the embodiment, the negative pressure source 11 is any device capable of providing stable negative pressure in the prior art, and is connected with the connecting end 3 in the form of a pipeline. More specifically, the pipeline is connected with the connecting end 3 in the form of screw threads to ensure the sealing of the connection. The negative pressure source 11 provides negative pressure to the stone storage space 2 through the negative pressure channel 4, and the stones are adsorbed by the through holes 10 and resist the elastic membrane 9.

[0034] In use, the elastic membrane 9 is connected with the adjusting seat 8 and the sealing seat 7 at both ends, respectively, and the adjusting seat 8 is pulled to make the sealing seat 7 close to the upper end of the stone storage channel, while the adjusting seat 8 is located at the bottom of the adjusting channel 5. Further, the negative pressure source 11 is connected with the connecting end 3, the body 1 is further inserted into the human body, and the front end of the stone storage space 2 is corresponded with the stones. Further, the negative pressure source 11 is turned on, and the negative pressure source 11 provides negative pressure to the stone storage space 2 through the negative pressure channel 4, so as to provide the through holes 10 to adsorb the stones and attach to the elastic membrane 9. Further, the adjusting seat 8 is moved upward, and the elastic membrane 9 drives the stones to move to the bottom of the stone storage space 2, while the elastic membrane 9 is retracted and fixed to the stones by the negative pressure. The above operation is repeated to realize continuous stone removal.

[0035] When the stone removal is completed or the stone storage channel is full, the body 1 is withdrawn, and the adjusting seat 8 is pulled to make the elastic membrane 9 located in the stone storage channel move to the front end of the body 1, so as to drive the stones located in the stone storage channel to separate and fall off. After the separation is completed, the body 1 is reinserted into the human body to complete the large-scale stone removal.

[0036] Due to the use of the elastic membrane and the negative pressure conveying mode, the stones are always in flexible contact, which can avoid the defects of the traditional clamps and the like that are easy to cause the stones to be damaged and produce debris in the body, thereby ensuring the stone removal effect. Meanwhile, the stone storage space 2 can realize large-scale stone removal, so as to greatly improve the stone removal efficiency.

[0037] Preferably, a limiting surface 12 is arranged in the stone storage space 2, and the stone storage space 2 is divided into an adsorption area 13 and a stone storage area 14 by the limiting surface 12. The adsorption area 13 and the stone storage area 14 are arranged along the front and back of the body 1, the sealing seat 7 is located in the stone storage area 14, one end of the negative pressure channel 4 is communicated with the adsorption area 13, and a passage 15 is arranged in the body 1 and communicated with the negative pressure channel 4 and the bottom of the stone storage area 14, respectively. The negative pressure source 11 provides negative pressure to the stone storage area 14 through the passage 15 to drive the sealing seat 7 to move to the bottom of the stone storage area 14. The sealing seat 7 is provided with a pressure regulating hole communicated with the stone storage area 14 and the adsorption area 13, and the stable pressure between the stone storage area 14 and the sealing seat 7 can be obtained through the pressure regulating hole.

[0038] By the setting of the limiting surface 12, the sealing seat 7 can be limited to avoid the sealing seat 7 blocking the negative pressure channel 4 to cause the failure of the negative pressure supply, and by the setting of the passage 15, the negative pressure source 11 can provide traction for the sealing seat 7 to move the sealing seat 7 to the bottom of the stone storage area 14, so that when the adjustment seat 8 is moved forward, the negative pressure between the stone storage area 14 and the sealing seat 7 can drive the sealing seat 7 to move quickly to ensure the conveying effect of the stones, and after the stone removal is completed, the negative pressure source 11 is closed to facilitate the forward movement of the sealing seat 7 through the passage 15 and the pressure regulating hole.

[0039] Preferably, one end of the elastic film 9 is provided with a fixed ring 16, the adjustment seat 8 is provided with a fixed groove corresponding to the fixed ring 16 and is clamped with the fixed ring 16, and the other end of the elastic film 9 away from the fixed ring 16 is gathered and provided with a fixed ring 17, and the sealing seat 7 is provided with a hook claw and is hooked with the fixed ring 17.

[0040] The setting of the fixed ring 16 and the fixed ring 17 can ensure the stable connection of the elastic film 9, and the gathering of one end of the elastic film 9 can maximize the binding of the stones in the stone storage area 14 through the resilience of the elastic film 9 itself to avoid the stones from falling off.

[0041] Preferably, the adjustment channel 5 forms an adjustment opening 18 corresponding to the rear end of the body 1, the adjustment seat 8 is connected with an elastic card 19, one end of the elastic card 19 is connected with the adjustment seat 8 along the adjustment opening 18, the other end is inclined away from the body 1, and the elastic card 19 is provided with a clamping block 20, and the clamping block 20 is used for clamping the rear end of the body 1 to limit the movement of the elastic card 19 to the front end of the body 1.

[0042] The elastic card 19 cooperates with the clamping block 20 to facilitate the adjustment and limiting of the adjustment seat 8, and the clamping block 20 can also be used to judge the movement distance of the sealing seat 7 to exit the body 1 in time to avoid the contact between the sealing seat 7 and the bottom of the stone storage area 14 to cause the movement failure of the elastic film 9.

[0043] Preferably, the front end of the body 1 forms an arc-shaped attaching surface 21 corresponding to the stone storage space 2, and the elastic film 9 covers the attaching surface 21.

[0044] The arc-shaped attaching surface 21 can ensure the smoothness of the elastic film 9 to avoid the damage of the elastic film 9.

[0045] Preferably, the negative pressure channel 4 is inclined away from each other at both ends.

[0046] So when the small stone fragments are sucked in, the accumulation of the fragments in the negative pressure channel 4 can be minimized.

[0047] Preferably, the rear end of the body 1 is connected with a filter unit, and the filter unit comprises filter cotton 22.

[0048] The filter unit is arranged to adsorb and filter the stone debris so as to avoid damaging the instrument when entering the negative pressure source 11.

[0049] Preferably, the filter unit comprises a ring-shaped mounting seat 23 which is threadedly connected to the rear end of the body 1, and the mounting seat 23 is provided with a supporting net 24 and supports the filter cotton 22 through the supporting net 24.

[0050] The arrangement of the mounting seat 23 and the supporting net 24 makes the overall structure simpler, thereby facilitating use.

[0051] The above description is only the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled in the art, some improvements and refinements without departing from the principles of the present application shall also be considered as falling within the protection scope of the present application.

Claims

1. A device for suctioning and removing gallstones, characterized in that, include: The main body (1) is tubular, with an open front end forming a stone storage space (2) and a connecting end (3) forming a rear end. The connecting end (3) is provided with a negative pressure channel (4) communicating with the stone storage space (2). The main body (1) surrounds the stone storage space (2) to form an adjustment channel (5), and the adjustment channel (5) forms an opening (6) corresponding to the front end of the main body (1). Sealing seat (7), the sealing seat (7) and the stone storage space (2) are sealed and slide together; Adjustment seat (8), the adjustment seat (8) is located in the adjustment channel (5) and slides along the length of the adjustment channel (5); An elastic membrane (9) is annular. One end of the elastic membrane (9) is fitted with an adjustment channel (5) and connected to an adjustment seat (8), and the other end is connected to a sealing seat (7). Through holes (10) are arranged on the elastic membrane (9). Negative pressure source (11), the negative pressure source (11) is connected to the connection end (3), the negative pressure source (11) provides negative pressure to the stone storage space (2) through the negative pressure channel (4), and adsorbs the stones and the elastic membrane (9) through the through hole (10); When the adjustment seat (8) moves toward the front end of the body (1), the elastic membrane (9) drives the stone to move toward the bottom of the stone storage space (2); The stone storage space (2) is provided with a limiting surface (12) and the stone storage space (2) is divided into an adsorption area (13) and a stone storage area (14) by the limiting surface (12). The adsorption area (13) and the stone storage area (14) are arranged along the front and back of the body (1). The sealing seat (7) is located in the stone storage area (14). One end of the negative pressure channel (4) is connected to the adsorption area (13). The body (1) is provided with a passage (15) that connects the negative pressure channel (4) and the bottom of the stone storage area (14) respectively. The negative pressure source (11) provides negative pressure to the stone storage area (14) through the passage (15) to drive the sealing seat (7) to move to the bottom of the stone storage area (14). The sealing seat (7) is provided with a pressure regulating hole that connects the stone storage area (14) and the adsorption area (13). One end of the elastic membrane (9) is provided with a fixing ring (16), the adjusting seat (8) is provided with a fixing groove corresponding to the fixing ring (16) and is engaged with the fixing ring (16), the end of the elastic membrane (9) away from the fixing ring (16) is gathered and provided with a fixing ring (17), and the sealing seat (7) is provided with a hook and is hooked with the fixing ring (17).

2. The gallbladder stone suction and removal device according to claim 1, characterized in that, The adjustment channel (5) forms an adjustment port (18) at the rear end of the main body (1). An elastic card (19) is connected to the adjustment seat (8). One end of the elastic card (19) is connected to the adjustment seat (8) along the adjustment port (18), and the other end is tilted away from the main body (1). A locking block (20) is arranged on the elastic card (19). The locking block (20) is used to lock the rear edge of the main body (1) to restrict the elastic card (19) from moving towards the front end of the main body (1).

3. The gallbladder stone suction and removal device according to claim 1, characterized in that, The front end of the main body (1) forms an arc-shaped attachment surface (21) corresponding to the stone storage space (2), and the elastic membrane (9) covers the attachment surface (21).

4. The gallbladder stone suction and removal device according to claim 1, characterized in that, The negative pressure channel (4) is inclined at both ends in a direction that moves away from each other.

5. The gallbladder stone suction and removal device according to claim 3, characterized in that, The rear end of the main body (1) is connected to a filter unit, which includes filter cotton (22).

6. The gallbladder stone suction and removal device according to claim 5, characterized in that, The filter unit includes an annular mounting base (23), which is threaded to the rear end of the main body (1). The mounting base (23) is provided with a support mesh (24) and the filter cotton (22) is supported by the support mesh (24).

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