Calculus suction mechanism and calculus removal equipment

Abstract

The utility model relates to the technical field of calculus sucking mechanisms, in particular to a calculus sucking mechanism and calculus removing equipment. The calculus suction mechanism comprises a storage tube, a negative pressure tube, an umbrella-shaped calculus suction cover and a plurality of push-pull pieces; the negative pressure pipe is arranged in the storage pipe and is used for being connected with a negative pressure device to generate negative pressure; the umbrella-shaped stone suction cover is installed at one end of the negative pressure pipe and communicated with the negative pressure pipe, the push-pull pieces are arranged in the storage pipe, one ends of the push-pull pieces are connected with the umbrella-shaped stone suction cover, and the umbrella-shaped stone suction cover can be deformed and folded. The push-pull part is pulled in the direction away from the umbrella-shaped stone suction cover, the umbrella-shaped stone suction cover is contained in the containing pipe, the push-pull part is pushed in the direction towards the umbrella-shaped stone suction cover, and the umbrella-shaped stone suction cover is pushed out of the containing pipe and stretches to be in an umbrella shape. When the calculus suction mechanism extends into the body, the umbrella-shaped calculus suction cover is stored in the storage tube, so that the calculus suction mechanism is small in overall size, calculus removal operation is easy, and the comfort level of a patient is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to a calculus sucking mechanism technical field, especially a calculus sucking mechanism and calculus removing equipment. BACKGROUND

[0002] The calculus removing equipment is a kind of medical equipment, mainly used to suck and remove calculus in human body in operation.The calculus removing equipment sucks calculus in human body by calculus sucking mechanism through negative pressure.The calculus sucking mechanism is adsorbed to calculus after generating negative pressure by calculus removing equipment, and calculus is taken out from body, so as to achieve the purpose of removing calculus in body.

[0003] The current calculus sucking mechanism can deform the stone wrapping device by negative pressure adsorption, and the stone wrapping device is wrapped around calculus after deformation, so as to take out calculus.However, the existence of stone wrapping device makes the calculus sucking mechanism larger in size, and the calculus sucking mechanism is difficult to extend into body, which leads to difficult calculus removal operation and poor patient comfort. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a calculus sucking mechanism and calculus removing equipment to solve the problem that the existence of stone wrapping device in prior art makes the calculus sucking mechanism larger in size, and the calculus sucking mechanism is difficult to extend into body, which leads to difficult calculus removal operation and poor patient comfort.

[0005] The utility model discloses a calculus sucking mechanism, including receiving pipe, negative pressure pipe, umbrella-shaped stone suction cover and a plurality of push-pull pieces, negative pressure pipe is arranged in receiving pipe, and negative pressure pipe is used for connecting negative pressure device to generate negative pressure, umbrella-shaped stone suction cover is installed at one end of negative pressure pipe and is communicated with negative pressure pipe, and a plurality of push-pull pieces are arranged in receiving pipe and one end is connected with umbrella-shaped stone suction cover respectively, and umbrella-shaped stone suction cover can deform and fold up;

[0006] The push-pull piece is pulled to the direction away from umbrella-shaped stone suction cover, umbrella-shaped stone suction cover is received in receiving pipe, the push-pull piece is pushed to the direction of umbrella-shaped stone suction cover, and umbrella-shaped stone suction cover is pushed out from receiving pipe and is unfolded to be umbrella-shaped.

[0007] Optionally, the umbrella-shaped stone suction cover includes a sleeving part extending towards the negative pressure pipe, the sleeving part is provided with a sleeving opening, and the sleeving opening is sleeved on the end of the negative pressure pipe.

[0008] Optionally, the push-pull piece has at least three, and the push-pull pieces are evenly connected on the side of the umbrella-shaped stone suction cover facing the receiving pipe.

[0009] Optionally, the side of the umbrella-shaped stone suction cover facing the receiving pipe is provided with a connecting part corresponding to the push-pull piece, the connecting part is provided with a plug-in channel penetrating both ends, and the end of the push-pull piece is plugged into the plug-in channel.

[0010] Optionally, the push-pull piece comprises an outwardly expanded part, which is curved towards a direction away from a center of the umbrella-shaped stone suction cover and has an elastic force of deformation recovery; when the umbrella-shaped stone suction cover is accommodated in the accommodating tube, the outwardly expanded part can be deformed and accommodated in the accommodating tube.

[0011] Optionally, the push-pull piece is a memory steel wire.

[0012] Optionally, the plurality of push-pull pieces are evenly arranged around the negative pressure tube.

[0013] Optionally, notches are arranged on the edge of the umbrella-shaped stone suction cover at positions corresponding to the push-pull pieces.

[0014] Optionally, the edge between adjacent notches is an outwardly convex arc-shaped edge.

[0015] The utility model discloses still a kind of stone removing equipment, including the stone suction mechanism of above.

[0016] Compared with prior art, the beneficial effects of the stone suction mechanism provided by the utility model embodiment are as follows: the stone suction mechanism of the utility model is provided with an umbrella-shaped stone suction cover, and the umbrella-shaped stone suction cover is connected with a plurality of push-pull pieces. Under the pushing and pulling of the push-pull pieces, the umbrella-shaped stone suction cover can be folded and accommodated in the accommodating tube or pushed out of the accommodating tube and unfolded to present an umbrella shape. During the process of extending into the patient's body, the umbrella-shaped stone suction cover is first folded and accommodated in the accommodating tube, and then opened by the pushing of the push-pull pieces after entering the body. The umbrella-shaped stone suction cover in an umbrella shape can conveniently cover the stones, and the stones are adsorbed under the negative pressure of the negative pressure tube, so that the stones are removed. In this way, when the stone suction mechanism extends into the body, the umbrella-shaped stone suction cover is accommodated in the accommodating tube, so that the overall volume is small, the stone removal operation is easy, and the patient's comfort is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] The technical solutions of the utility model will be further described in detail below with reference to the drawings and embodiments, and the drawings are as follows:

[0018] Figure 1 is a schematic view of the stone suction mechanism of the utility model embodiment;

[0019] Figure 2 is another schematic view of the stone suction mechanism of the utility model embodiment;

[0020] Figure 3 is another schematic view of the stone suction mechanism of the utility model embodiment;

[0021] Figure 4 is a schematic view of the unfolding of the negative pressure tube, the push-pull piece and the umbrella-shaped stone suction cover of the utility model embodiment;

[0022] Figure 5 is a schematic view of the accommodation of the umbrella-shaped stone suction cover in the accommodating tube of the utility model embodiment;

[0023] Figure 6 This is another schematic diagram of the umbrella-shaped stone absorber housed in the storage tube according to an embodiment of the present invention;

[0024] Figure 7 This is another schematic diagram of the umbrella-shaped stone absorber housed in the storage tube according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the negative pressure tube, push-pull component, and umbrella-shaped suction cover folding in an embodiment of this utility model.

[0026] The labels for the attached figures are as follows:

[0027] 1. Storage tube; 2. Negative pressure tube; 3. Umbrella-shaped stone suction cover; 31. Set part; 311. Set opening; 32. Connecting part; 321. Insertion channel; 33. Edge; 331. Notch; 332. Arc edge; 4. Push-pull part; 41. Outward expansion part. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] This utility model embodiment provides a stone removal mechanism, such as Figures 1 to 8 As shown, the stone removal mechanism includes a receiving tube 1, a negative pressure tube 2, an umbrella-shaped stone suction cover 3, and multiple push-pull components 4; the negative pressure tube 2 is installed in the receiving tube 1 and is used to connect to a negative pressure device to generate negative pressure; the umbrella-shaped stone suction cover 3 is installed at one end of the negative pressure tube 2 and is connected to the negative pressure tube 2; the multiple push-pull components 4 are installed in the receiving tube 1 and one end is connected to the umbrella-shaped stone suction cover 3 respectively; the umbrella-shaped stone suction cover 3 can deform and fold.

[0030] Pull the push-pull component 4 away from the umbrella-shaped stone-absorbing cover 3, and the umbrella-shaped stone-absorbing cover 3 will be stored in the storage tube 1. Push the push-pull component 4 in the direction of the umbrella-shaped stone-absorbing cover 3, and the umbrella-shaped stone-absorbing cover 3 will be pushed out from the storage tube 1 and unfold into an umbrella shape.

[0031] The stone suction mechanism is provided with the umbrella-shaped stone suction cover 3, and the umbrella-shaped stone suction cover 3 is connected with the plurality of push-pull pieces 4; under the push-pull of the push-pull pieces 4, the umbrella-shaped stone suction cover 3 can be folded and stored in the storage tube 1 or pushed out of the storage tube 1 and unfolded to be umbrella-shaped. During the process of the stone suction mechanism extending into the patient's body, the umbrella-shaped stone suction cover 3 is first folded and stored in the storage tube 1, and after entering the body, the umbrella-shaped stone suction cover 3 is opened by the push of the push-pull piece 4, and the umbrella-shaped stone suction cover 3 in the umbrella shape can conveniently cover the stone and adsorb the stone under the negative pressure of the negative pressure tube 2, so that the stone is taken out. In this way, when the stone suction mechanism extends into the body, the umbrella-shaped stone suction cover 3 is stored in the storage tube 1, the overall volume is small, the stone taking operation is easy, and the patient's comfort is better.

[0032] Specifically, when the umbrella-shaped stone suction cover 3 is folded and stored in the storage tube 1 or pushed out of the storage tube 1 and opened, since the negative pressure tube 2 is connected with the umbrella-shaped stone suction cover 3, the negative pressure tube 2 also follows the umbrella-shaped stone suction cover 3 and the push-pull piece 4. The negative pressure tube 2 communicates with the negative pressure generating mechanism of the stone removing device to generate negative pressure and adsorb the stone by negative pressure.

[0033] As shown in the figure, Figure 4 The umbrella-shaped stone suction cover 3 includes a sleeving part 31 extending towards the negative pressure tube 2, and the sleeving part 31 is provided with a sleeving opening 311 sleeved on the end of the negative pressure tube 2. The umbrella-shaped stone suction cover 3 is connected with the negative pressure tube 2 by arranging the sleeving part 31 extending towards the negative pressure tube 2 and the sleeving opening 311 sleeved on the end of the negative pressure tube 2, so that the connection of the two is convenient and reliable. Specifically, the sleeving opening 311 can be further fixed on the end of the negative pressure tube 2 by adhesive, to realize the firm connection and sealing between the sleeving part 31 and the negative pressure tube 2.

[0034] Specifically, the material of the umbrella-shaped stone suction cover 3 is silica gel or a deformable film. Silica gel and some types of deformable films such as medical-grade TPU have good flexibility and elasticity, so that the umbrella-shaped stone suction cover 3 can be conveniently deformed and folded, and unfolded, which is convenient for folding the umbrella-shaped stone suction cover 3 in the storage tube 1 or unfolding it from the storage tube 1, and adapts to different surgical operations and in-vivo environments. Moreover, the silica gel material is durable and stable, has excellent biocompatibility, can safely contact with human tissues, reduces inflammatory and foreign body reactions, can withstand pulling and deformation during the operation without damage, and ensures the smooth progress of the operation.

[0035] As shown in the figure, Figure 4As shown, the push-pull pieces 4 are at least three, and are evenly spaced and connected to the side of the umbrella-shaped stone suction cover 3 facing the storage tube 1. The even distribution of the at least three push-pull pieces 4 can ensure that each part of the umbrella-shaped stone suction cover 3 is evenly stressed when unfolded, avoiding irregular shape or damage of the umbrella-shaped stone suction cover 3 due to uneven stress. The even distribution of the push-pull pieces 4 makes it easier to control the unfolding and folding of the umbrella-shaped stone suction cover 3, improving the convenience and accuracy of the operation.

[0036] The side of the umbrella-shaped stone suction cover 3 facing the storage tube 1 is provided with a connecting portion 32 corresponding to the push-pull piece 4, and the connecting portion 32 is provided with a plug-in channel 321 extending through both ends, and the end of the push-pull piece 4 is plugged into the plug-in channel 321. By providing the plug-in channel 321 extending through both ends in the connecting portion 32, the end of the push-pull piece 4 can be stably plugged into the channel, and such design enhances the connection stability between the push-pull piece 4 and the umbrella-shaped stone suction cover 3, ensuring that the umbrella-shaped stone suction cover 3 will not be incorrectly deformed or deviated due to unstable connection during operation.

[0037] The push-pull piece 4 includes an outwardly expanding portion 41, which is curved away from the center of the umbrella-shaped stone suction cover 3 and has a shape-restoring elastic force; and when the umbrella-shaped stone suction cover 3 is stored in the storage tube 1, the outwardly expanding portion 41 can be deformed and stored in the storage tube 1. The outwardly expanding portion 41 of the push-pull piece 4 has a shape-restoring elastic force, and since the outwardly expanding portion 41 is curved away from the center of the umbrella-shaped stone suction cover 3, when the umbrella-shaped stone suction cover 3 is outside the storage tube 1, the umbrella-shaped stone suction cover 3 can be unfolded into the desired umbrella shape under the pulling of the outwardly expanding portion 41, facilitating covering the stones. When the umbrella-shaped stone suction cover 3 is stored in the storage tube 1, the outwardly expanding portion 41 can be deformed and stored in the storage tube 1, and when it is stretched out of the storage tube 1 again, the outwardly expanding portion 41 is reset under the action of its own shape-restoring elastic force, and the umbrella-shaped stone suction cover 3 is unfolded into the desired umbrella shape under the pulling of the outwardly expanding portion 41.

[0038] Specifically, the push-pull piece 4 is a memory steel wire. The memory steel wire has a unique shape memory function, and can quickly restore to the original state after a certain deformation, so that the push-pull piece 4 can provide stable and continuous force during operation, which helps to more effectively control the unfolding and storage of the umbrella-shaped stone suction cover 3. Specifically, a plurality of push-pull pieces 4 are evenly spaced and arranged around the negative pressure tube 2.

[0039] Further, the edge 33 of the umbrella-shaped stone suction cover 3 is provided with notches 331 corresponding to the positions of the push-pull pieces 4. In this scheme, the notches 331 are provided on the edge 33 of the umbrella-shaped stone suction cover 3 corresponding to the positions of the push-pull pieces 4, which can reduce the stress of the umbrella-shaped stone suction cover 3 at the push-pull pieces 4, facilitating the folding of the umbrella-shaped stone suction cover 3 into the storage tube 1. Specifically, the push-pull pieces 4 are provided with three, and the notches 331 are also provided with three.

[0040] As shown in FIG. 1, the umbrella-shaped stone suction cover 3 is connected to the negative pressure tube 2 through a plurality of push-pull pieces 4. Figure 1As shown, the edge 33 between adjacent notches 331 is an outwardly convex arc-shaped edge 332. The outwardly convex arc-shaped edge 332 provides a smooth transition, reducing the sharpness at the edge 33, which helps to reduce damage to tissue in the patient's body during surgery, improving the safety of the surgery. The design of the arc-shaped edge 332 helps to evenly distribute the force exerted by the push-pull member 4 when the umbrella-shaped stone suction cover 3 is deployed, avoiding deformation or damage to the cover surface due to local stress concentration.

[0041] The utility model discloses still a kind of calculus removing equipment, including the calculus suction mechanism of above. Calculus removing equipment further include vacuum generating mechanism, vacuum generating mechanism is connected with negative pressure pipe, so that umbrella-shaped stone suction cover 3 negative pressure adsorbs calculus.

[0042] It should be understood that the above embodiments are only used to illustrate the technical solutions of the utility model, not to limit them, and the skilled in the art can modify the technical solutions recorded in the above embodiments or make equivalent replacement for part of the technical features; all these modifications and replacements shall belong to the protection scope of the claims attached to the utility model.

Claims

1. A stone removal mechanism, characterized in that, The stone suction mechanism comprises a storage tube, a negative pressure tube, an umbrella-shaped stone suction cover and a plurality of push-pull members; the negative pressure tube is arranged in the storage tube and used for connecting a negative pressure device to generate negative pressure; the umbrella-shaped stone suction cover is installed at one end of the negative pressure tube and communicates with the negative pressure tube; a plurality of the push-pull members are arranged in the storage tube and respectively connected at one end to the umbrella-shaped stone suction cover; and the umbrella-shaped stone suction cover can be folded. The push-pull members are pulled away from the umbrella-shaped stone suction cover, the umbrella-shaped stone suction cover is stored in the storage tube, and the push-pull members are pushed towards the umbrella-shaped stone suction cover, the umbrella-shaped stone suction cover is pushed out of the storage tube and unfolded in an umbrella shape.

2. The stone extraction mechanism of claim 1, wherein The umbrella-shaped stone suction cover comprises a sleeving part extending towards the negative pressure tube, and the sleeving part is provided with a sleeving opening sleeved on the end of the negative pressure tube.

3. The stone extraction mechanism according to claim 1 or 2, characterized in that, The push-pull members are at least three, and the push-pull members are uniformly arranged on the side of the umbrella-shaped stone suction cover facing the storage tube.

4. The stone extraction mechanism of claim 3, wherein The umbrella-shaped stone suction cover is provided with a connecting part on the side facing the storage tube corresponding to the push-pull members, the connecting part is provided with a plug-in channel penetrating through both ends, and the end of the push-pull member is plugged into the plug-in channel.

5. The stone extraction mechanism of claim 3, wherein The push-pull member comprises an outward expansion part, the outward expansion part is curved away from the center of the umbrella-shaped stone suction cover, and has an elastic force of deformation recovery; when the umbrella-shaped stone suction cover is stored in the storage tube, the outward expansion part can be deformed and stored in the storage tube.

6. The stone extraction mechanism of claim 5, wherein, The push-pull member is a memory steel wire.

7. The stone extraction mechanism of claim 3, wherein The plurality of push-pull members are uniformly arranged around the negative pressure tube.

8. The stone extraction mechanism of claim 3, wherein, The edge of the umbrella-shaped stone suction cover is provided with notches corresponding to the positions of the push-pull members.

9. The stone extraction mechanism of claim 8, wherein, The edge between adjacent notches is an outward convex arc-shaped edge.

10. A stone removal device, characterized by The stone suction mechanism comprises any one of claims 1 to 9.

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