Handle assembly and lithotripsy instrument

Abstract

The utility model provides a handle assembly and a lithotripsy instrument. The handle piece is provided with a guide groove allowing the near end of the traction rope to penetrate through. The rotating piece is rotationally connected to the handle piece and provided with a fixing part for fixing the traction rope, and when the rotating piece rotates, the near end of the traction rope slides along the guide groove and is wound around the rotating piece. Thus, when the calculus with the large size cannot be smoothly taken out, the near end of the traction rope can directly penetrate through the guide groove in the handle piece to be connected with the rotating piece, due to the fact that the guide groove is of a semi-open structure, the traction rope only needs to be placed into the guide groove from the position above the guide groove when the traction rope penetrates through the guide groove, operation is easy and fast, and accurate alignment is not needed; after penetrating through the guide groove, the near end of the traction rope is fixed to the rotating part, when the rotating part is rotated, the near end of the traction rope can be wound around the rotating part, at the moment, the stone crushing part at the far end of the traction rope can apply acting force to the stone, and therefore the stone is crushed to be taken out conveniently.

Description

Technical Field

[0001] This utility model relates to the technical field of stone treatment, specifically to a handle assembly and a lithotripsy device. Background Technology

[0002] A stone retrieval basket is an auxiliary tool used in surgery to remove stones from the main bile duct. It primarily uses a stone retrieval handle to guide the basket to the stone site. The handle also controls the opening of the basket to capture and remove the stone from the main bile duct. When the stone is too large to be easily removed, the stone retrieval handle can be replaced with a stone crushing handle. This handle allows for further contraction of the basket, crushing the stone and facilitating its removal.

[0003] Currently, when replacing the lithotripsy handle, the proximal end of the traction rope needs to be connected to the handle. However, the complex structure of the lithotripsy handle in existing technology makes the operation of connecting and securing the traction rope complicated and delicate, increasing the complexity of the surgery. Utility Model Content

[0004] To at least partially address the problems existing in the prior art, according to one aspect of the present invention, a handle assembly is provided. The handle assembly includes a handle member and a rotating member. The handle member is provided with a guide groove for the proximal end of a traction rope to pass through. The rotating member is rotatably connected to the handle member and is provided with a fixing part for fixing the traction rope. When the rotating member rotates, the proximal end of the traction rope slides along the guide groove and winds around the rotating member.

[0005] When dealing with large stones that cannot be easily removed, the handle assembly of this invention allows the proximal end of the traction rope to be directly passed through the guide groove on the handle and connected to the rotating component. Since the guide groove is a semi-open structure, the traction rope can be simply placed into the guide groove from above, making the operation simple and quick without the need for precise alignment. After passing through the guide groove, the proximal end of the traction rope is fixed to the rotating component. When the rotating component is rotated, the proximal end of the traction rope can be wrapped around the rotating component. At this time, the stone crushing component (which can be a basket or other structure) at the distal end of the traction rope can apply force to the stone, thereby crushing the stone for easy removal.

[0006] For example, the handle includes a receiving cavity, a guide groove communicating with the receiving cavity, the proximal end of the traction rope passing through the guide groove and extending into the receiving cavity, and a fixing part disposed in the receiving cavity.

[0007] For example, the fixing part is a fixing hole that extends radially through the rotating member. When the rotating member rotates to the first position, the guide groove extends in the same direction as the fixing hole.

[0008] For example, the width of the guide groove ranges from 0.5 mm to 3 mm.

[0009] For example, at least one end of the rotating member passes through the handle member and forms a grip portion outside the receiving cavity; the grip portion has an outer diameter larger than the other parts of the rotating member when projected along the axial direction of the rotating member.

[0010] According to another aspect of the present invention, a lithotripsy device is also provided, comprising a traction rope and a lithotripsy component connected to the distal end, wherein the traction rope is provided with the handle assembly described above at the proximal end.

[0011] The lithotripsy device of this application includes a handle assembly. Since the handle assembly has the beneficial effects described above, the lithotripsy device including the handle assembly described above will necessarily also have the beneficial effects described above.

[0012] For example, the lithotripsy device also includes an injection unit that can pass through a traction rope, the injection unit abutting against the distal end of the handle and aligned with the distal end of the guide groove.

[0013] For example, the proximal end of the injection unit is provided with a tube body, which is detachably connected to the handle.

[0014] For example, the handle assembly also includes an abutment that is inserted into the handle and abuts against the guide groove to apply a force to the guide groove to press it against the tube body portion.

[0015] For example, the lithotripsy device also includes a stone-retrieving handle, which is alternatively connected to the proximal end of the traction rope along with the handle assembly.

[0016] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0017] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0018] Figure 1 A partial front view of a lithotripsy device including a handle assembly according to an exemplary embodiment of the present invention is shown;

[0019] Figure 2 A partial front view of a lithotripsy device according to an exemplary embodiment of the present invention is shown.

[0020] The components indicated by the reference numerals in the figures are as follows:

[0021] 1. Handle component; 11. Guide groove; 12. Receiving cavity; 2. Traction rope; 3. Rotating component; 31. Fixing hole; 4. Grip part; 5. Injection component; 51. Injection port; 6. Abutment component; 7. Sheath tube; 8. Crushing stone component. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model more apparent, exemplary embodiments according to this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, and not all embodiments of this utility model. It should be understood that this utility model is not limited to the exemplary embodiments described herein. Based on the embodiments of this utility model described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of this utility model.

[0023] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0024] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0025] One embodiment of this utility model provides a handle assembly that can be connected to the traction rope 2 without damage and quickly, effectively improving the convenience of operation and reducing the time required for connection. The handle assembly according to an embodiment of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 As shown, the handle assembly includes a handle part 1 and a rotating part 3. The handle part 1 is provided with a guide groove 11 for the proximal end of the traction rope 2 to pass through. The rotating part 3 is rotatably connected to the handle part 1 and is provided with a fixing part for fixing the traction rope 2. When the rotating part 3 rotates, the proximal end of the traction rope 2 slides along the guide groove 11 and is wound around the rotating part 3.

[0027] The proximal end can be represented as the end closer to the doctor. Similarly, the distal end can be represented as the end farther from the doctor.

[0028] The proximal end of the traction rope 2 can pass through the guide groove 11 and connect to the rotating part 3. The guide groove 11 can play a guiding role in the process of threading the traction rope 2, so as to provide a clear threading path for the proximal end of the traction rope 2, and thus allow the proximal end of the traction rope 2 to be accurately threaded into the handle part 1.

[0029] The shape of the rotating part 3 can be cylindrical or elongated. This application does not specifically limit the shape of the rotating part 3.

[0030] The proximal end of the traction rope 2 can be engaged or wound with the fixed part provided on the rotating part 3, etc. This application does not specifically limit the connection method between the two.

[0031] When dealing with large stones that cannot be easily removed, the handle assembly of this utility model allows the proximal end of the traction rope 2 to be directly passed through the guide groove 11 on the handle 1 and connected to the rotating component 3. Since the guide groove 11 is a semi-open structure, when passing the traction rope 2, it is only necessary to put the traction rope 2 into the guide groove 11 from above. The operation is simple and quick, and no precise alignment is required. After passing through the guide groove 11, the proximal end of the traction rope 2 is fixed to the rotating component 3. When the rotating component 3 is rotated, the proximal end of the traction rope 2 can be wrapped around the rotating component 3. At this time, the stone crushing component 8 (which can be a basket or other structure) at the distal end of the traction rope 2 can apply force to the stone, thereby crushing the stone to facilitate its removal.

[0032] In some embodiments, such as Figure 1 As shown, the handle 1 includes a receiving cavity 12, a guide groove 11 is connected to the receiving cavity 12, the proximal end of the traction rope 2 passes through the guide groove 11 and extends into the receiving cavity 12, and the fixing part is provided in the receiving cavity 12.

[0033] The handle 1 can be constructed as a hollow structure to form the aforementioned receiving cavity 12. The two ends of the rotating member 3 can be rotatably connected to the cavity wall of the receiving cavity 12, so that when the proximal end of the traction rope 2 is wrapped around the rotating member 3, the traction rope 2 can be collected in the receiving cavity 12.

[0034] In the above embodiments, the receiving cavity 12 on the handle 1 not only provides an installation and operation space for the doctor to fix the traction rope 2, but also provides a stable receiving space for the proximal end of the traction rope 2, so that the traction rope 2 can remain stable within the handle 1 and is less likely to loosen or fall off. Furthermore, by providing the receiving cavity 12 within the handle 1, the weight of the handle 1 can be effectively reduced, thereby reducing the weight of the handle assembly and improving the ease of use of the handle assembly.

[0035] In some embodiments, such as Figure 1As shown, the fixing part is a fixing hole 31 that passes through the radial direction of the rotating member 3. When the rotating member 3 rotates to the first position, the guide groove 11 and the fixing hole 31 extend in the same direction.

[0036] The diameter of the fixing hole 31 can be slightly larger than the diameter of the proximal end of the traction rope 2, so that the proximal end of the traction rope 2 can be inserted into the fixing hole 31 to achieve the connection between the traction rope 2 and the rotating part 3.

[0037] The first position can be specifically defined as the position where the groove of the guide groove 11 and the through hole of the fixing hole 31 are on the same straight line. When the rotating part 3 rotates to the first position, the proximal end of the traction rope 2 can pass through the guide groove 11 and the fixing hole 31 in sequence, thereby completing the fixation between the traction rope 2 and the rotating part 3.

[0038] In the above embodiment, the proximal end of the traction rope 2 can be easily inserted into the fixing hole 31 formed on the rotating member 3, thereby realizing the connection between the traction rope 2 and the fixing part. This not only effectively simplifies the connection steps between the traction rope 2 and the rotating member 3 and improves the ease of use of the handle assembly, but also allows the proximal end of the traction rope 2 to be firmly wrapped around the rotating member 3 when the rotating member 3 rotates, effectively simplifying the connection structure of the rotating member 3 and improving the layout rationality and reliability of the handle assembly.

[0039] In some embodiments, the width of the guide groove 11 ranges from 0.5 mm to 3 mm.

[0040] The width of the guide groove 11 can be adapted to the diameter of the traction rope 2. When the width of the guide groove 11 is too small, it may affect the smooth passage of the traction rope 2. When the width of the guide groove 11 is too large, it cannot guide the passage of the traction rope 2.

[0041] The width of the guide groove 11 ranges from 0.5 mm to 3 mm, for example, 0.5 mm, 1 mm, 2 mm, 2.5 mm, 3 mm, etc.

[0042] In the above embodiments, the guide groove 11 with the above-mentioned width range can be compatible with traction ropes 2 of different diameters. While ensuring that the proximal end of the traction rope 2 can easily pass through the guide groove 11, it can also provide a stable guiding effect for the proximal end of the traction rope 2, avoiding the proximal end of the traction rope 2 from deflecting or shaking during the winding process, ensuring that the traction rope 2 can be tightly wound on the rotating part 3, and effectively improving the reliability of the handle assembly.

[0043] In some embodiments, such as Figure 1 As shown, at least one end of the rotating member 3 passes through the handle member 1 and forms a gripping portion 4 outside the receiving cavity 12; the gripping portion 4 has an outer diameter larger than the other parts of the rotating member 3 when projected along the axial direction of the rotating member 3.

[0044] One end of the rotating component 3 can pass through the cavity wall of the handle component 1 and form a gripping part 4. The doctor can rotate the gripping part 4, thereby driving the rotating component 3 to rotate.

[0045] Of course, the rotation of the gripping part 4 can also be achieved by electrical drive instead of mechanical transmission. Specifically, the gripping part 4 can be connected to a cylinder or other device capable of rotating the gripping part 4. This application does not specifically limit the driving method of the gripping part 4.

[0046] In the above embodiments, the rotating part 3 can be driven to rotate simply by rotating the grip part 4, eliminating the need for complex mechanical structures and effectively reducing the manufacturing cost and failure rate of the handle assembly. Furthermore, the grip part 4, with its larger outer diameter, provides a wider contact area, making it easier for doctors to grip and apply force, thus making it easier to rotate the rotating part 3.

[0047] According to another aspect of this utility model, such as Figure 1 The invention also provides a lithotripsy device, including a traction rope 2 and a lithotripsy component 8 connected to the distal end, with the handle assembly as described above mounted on the proximal end of the traction rope 2.

[0048] It should be noted that the lithotripsy device can be a long tubular structure, with an overall length of over one meter, to allow for deep insertion into the patient's body. When the lithotripsy device is inserted into the patient's body, the proximal end of the device can be outside the patient's body, while the distal end can be inside. The distal end of the lithotripsy device is equipped with a lithotripsy component 8 (such as a basket or other structure) connected to the traction rope 2. Pulling the traction rope 2 towards the proximal end causes the lithotripsy component 8 to crush stones and other foreign objects, and then pulling the lithotripsy device removes the crushed stones from the affected area.

[0049] Specifically, the lithotripsy component 8 can switch between a contracted state and an expanded state. When the lithotripsy component 8 is in the contracted state, it can be delivered to the vicinity of the stone. At this time, the lithotripsy component 8 can be switched to the expanded state so that the stone can be fitted into the center of the lithotripsy component 8. Then, the lithotripsy component 8 can be switched back to the contracted state, thereby firmly gathering the stone within the lithotripsy component 8 and further applying a contracting force to the stone, thereby crushing the stone and removing it from the patient's body.

[0050] The crushed stone component 8 can be made of a material with good flexibility and elasticity, such as nickel-titanium alloy or stainless steel wire, and this application does not specifically limit it.

[0051] The lithotripsy device of this application includes a handle assembly. Since the handle assembly has the beneficial effects described above, the lithotripsy device including the handle assembly described above will necessarily also have the beneficial effects described above.

[0052] In some embodiments, the device further includes an injection element 5 that can pass through the traction rope 2, the injection element 5 abutting against the distal end of the handle element 1 and aligned with the distal end of the guide groove 11.

[0053] The flushing solution, such as saline solution, can be injected into the patient's body through the injection device 5. Injecting the flushing solution into the patient's body can help to expel the stones.

[0054] like Figure 2 As shown, the lithotripsy device may also include a sheath 7, which is connected to the distal end of the injection unit 5. The lithotripsy unit 8 is inserted into the sheath 7, and the distal end of the lithotripsy unit 8 is exposed outside the sheath 7.

[0055] The sheath 7 can be a tubular structure fitted over the crushed stone component 8. The tubular shape of the sheath 7 can be cylindrical or elongated, etc.

[0056] The sheath 7 can be made of a flexible material, specifically linear nylon. This application does not impose any specific limitations; any flexible material with bio-friendly properties is acceptable.

[0057] like Figure 1 and Figure 2 As shown, the injection device 5 may be provided with an injection port 51, which is connected to the sheath tube 7. In this way, flushing fluid can be injected into the sheath tube 7 through the injection port 51, and the flushing fluid can flow through the sheath tube 7 to the location of the stone, thereby timely removing stone fragments and tissue debris generated during the lithotripsy procedure, effectively ensuring the effectiveness of the lithotripsy instrument.

[0058] In some embodiments, the proximal end of the injection component 5 is provided with a tube body (not shown in the figure), which is detachably connected to the handle component 1.

[0059] The liquid injection component 5 and the tube body can be detachably connected or integrally formed. Detachable connections can include plug-in connections or threaded connections, etc., and this application does not make specific limitations in this regard.

[0060] The diameter of the tube body can be slightly smaller than the diameter of the guide groove 11, so that the tube body can be inserted and connected to the guide groove 11, and then the liquid injection part 5 can be connected to the handle assembly.

[0061] In the above embodiment, by inserting the tube portion of the injection component 5 into the guide groove 11, a firm connection can be formed between the injection component 5 and the handle assembly. This not only facilitates the assembly and disassembly of the injection component 5 and the handle assembly, but also ensures the overall firmness and reliability of the lithotripsy device.

[0062] In some embodiments, such as Figure 1As shown, the handle assembly also includes an abutment 6, which is inserted into the handle 1 and abuts against the guide groove 11 to apply a force to the guide groove 11 to press against the tube body.

[0063] After the tube body of the injection component 5 is inserted into the guide groove 11, the abutment 6 can be inserted into the outer wall of the handle component 1 and abut against the guide groove 11. The abutment action of the abutment 6 can increase the friction between the tube body and the guide groove 11, thereby increasing the connection between the injection component 5 and the handle component 1. This application does not specifically limit the insertion direction of the abutment 6; any direction that can abut against the guide groove 11 is acceptable.

[0064] In one specific embodiment, a through cavity may be formed on the side wall of the handle 1, and one end of the through cavity is connected to the guide groove 11. An internal thread adapted to the abutment 6 may be formed in the through cavity. The abutment 6 may be screw-shaped. When the abutment 6 is inserted into the through cavity and rotated clockwise, it can move towards the guide groove 11 until it abuts against the tube part inserted into the guide groove 11, squeezing the tube part to prevent it from loosening. Alternatively, a blind hole may be formed on the side wall of the handle 1. When the abutment 6 is inserted into the blind hole and approaches the guide groove 11, the guide groove 11 can be more tightly attached to the tube part inserted into the guide groove 11 after being deformed by force, thereby ensuring a firm connection between the handle 1 and the injection component 5.

[0065] In the above embodiments, the handle 1 and the injection component 5 can be firmly connected by rotating the abutment 6, which effectively improves the overall structural strength of the lithotripsy device and thus enhances the reliability and safety of the lithotripsy device.

[0066] In some embodiments, the lithotripsy device further includes a stone-retrieving handle, which is alternatively connected to the proximal end of the traction rope 2 along with the handle assembly.

[0067] When the stones in the patient's body are small and can be easily removed from the patient's body, the handle assembly can be detached from the proximal end of the traction rope 2 and a stone retrieval handle can be installed. The stone retrieval handle can collect the stones in the stone fragments 8 located at the distal end of the traction rope 2 and remove them from the patient's body.

[0068] In the above embodiments, doctors can alternately connect the stone removal handle and the handle assembly to the proximal end of the traction rope 2 according to actual usage needs and conditions, thereby meeting different usage scenarios and effectively improving the practicality and universality of the lithotripsy device.

[0069] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that these exemplary embodiments are merely illustrative and are not intended to limit the scope of the invention. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of the invention. All such changes and modifications are intended to be included within the scope of the invention as claimed in the appended claims.

[0070] For ease of description, the term "connection" may be used herein to describe the relationship between one or more elements or features shown in the figure and other elements or features. It should be understood that "connection" may include direct connections or indirect connections via other elements or features, and this document is intended to encompass all such cases.

[0071] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0072] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0073] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A handle assembly comprising: include: A handle component, wherein the handle component is provided with a guide groove for the proximal end of the traction rope to pass through; as well as A rotating component is rotatably connected to the handle component and has a fixing part for fixing the traction rope. When the rotating component rotates, the proximal end of the traction rope slides along the guide groove and is wound around the rotating component.

2. The handle assembly of claim 1, wherein, The handle includes a receiving cavity, the guide groove is connected to the receiving cavity, the proximal end of the traction rope passes through the guide groove and extends into the receiving cavity, and the fixing part is disposed in the receiving cavity.

3. The handle assembly of claim 2, wherein, The fixing part is a fixing hole that passes through the radial direction of the rotating member (3). When the rotating member is rotated to the first position, the guide groove and the fixing hole extend in the same direction.

4. Handle assembly according to any one of claims 1 to 3, characterized in that The width of the guide groove ranges from 0.5 mm to 3 mm.

5. The handle assembly of claim 2, wherein, At least one end of the rotating member passes through the handle member and forms a grip portion outside the receiving cavity; the grip portion has an outer diameter larger than the other parts of the rotating member when projected along the axial direction of the rotating member.

6. A lithotripter apparatus characterized by, It includes a traction rope and a rock-breaking component attached to the distal end, wherein the proximal end of the traction rope is fitted with a handle assembly as described in any one of claims 1 to 5.

7. A lithotripter according to claim 6, wherein, It also includes a liquid injection device that can pass through the traction rope, the liquid injection device abutting against the distal end of the handle and aligned with the distal end of the guide groove.

8. A lithotripter according to claim 7, wherein, The proximal end of the injection device is provided with a tube body, which is detachably connected to the handle.

9. A lithotriptor apparatus as claimed in claim 8, characterized in that The handle assembly further includes an abutment member that is inserted into the handle member and abuts against the guide groove to apply a force to the guide groove to press against the tube body portion.

10. Lithotripsy apparatus according to any one of claims 6 to 9, wherein, The lithotripter also includes a stone-retrieving handle, which is alternatively connected to the proximal end of the traction rope along with the handle assembly.

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