Built-in gland locking structure and biopsy device handle

Abstract

The utility model relates to the technical field of medical apparatus and instruments, and particularly discloses a built-in gland locking structure and a biopsy device handle, the built-in gland locking structure comprises a locking plate, a gland locking plate, a gland locking plate and a gland locking plate, the locking plate is connected in a shell in a sliding manner; the locking elastic piece is arranged between the near end of the locking plate and the shell; the locking groove is formed in the side, facing the shell, of the near end of the gland, and the opening direction of the locking groove faces the far end; and the locking convex part is fixedly connected with the locking plate and is located outside the shell, and the locking convex part faces the locking groove. According to the biopsy device handle, the built-in gland locking structure is hidden in the gland and the shell and is invisible from the outside, misoperation can be avoided, the appearance of the biopsy device handle is more concise, and the attractiveness of the biopsy device handle is better; in addition, an operator does not need to operate a built-in gland locking structure to control locking and releasing of the gland, operation steps are fewer, and the experience of the operator is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a built -in type gland locking structure and biopsy device handle. BACKGROUND

[0002] The biopsy device is a kind of medical instrument for removing, collecting tissue sample, is suitable for liver, kidney, lung, prostate, breast, thyroid and other multiple organs biopsy, suck cell etc., with simple and quick operation, convenient to use, sampling quickly and other characteristics.

[0003] In prior art, the handle of biopsy device disclosed by US20180153525A1 is applied to three needle type biopsy device.In the above-mentioned handle of biopsy device, the sliding switch of lever release is arranged on the outside of the shell, and the sliding switch needs to be manually pushed to realize the locking and releasing of lever.The external sliding switch makes the structure of the handle of biopsy device more complex, and the locking and releasing of lever can be realized only by manually pushing the sliding switch, which undoubtedly increases the operation steps of operator. SUMMARY

[0004] The utility model solves the technical problem to provide a built -in type gland locking structure and biopsy device handle, and the built -in type design of gland locking structure increases the aesthetic degree of biopsy device handle, and locking and releasing of gland can be realized without additional operation of operator, and the operation steps of operator are simplified.

[0005] In order to solve the above technical problem, the technical scheme provided by the utility model is as follows: a built -in type gland locking structure is arranged in the handle of biopsy device, and the handle of biopsy device at least includes shell and gland hinged to the distal end of the shell, and the built -in type gland locking structure includes:

[0006] Locking plate, the locking plate is slidably connected in the shell;

[0007] Locking elastic element, the locking elastic element is arranged between the proximal end of the locking plate and the shell;

[0008] Locking groove, the locking groove is arranged on the side of the proximal end of the gland facing the shell, and the opening direction of the locking groove is towards the distal end;

[0009] Locking convex part, the locking convex part is fixedly connected with the locking plate and located outside the shell, and the locking convex part is towards the locking groove.

[0010] In a preferred embodiment, the limiting plate under the locking plate is arranged in the position close to the proximal end inside the shell.

[0011] A preferred embodiment, the housing is provided with a limiting step located at the distal side of the locking plate.

[0012] A preferred embodiment, further comprising a support arm between the locking plate and the locking protrusion, the housing is provided with a through slot for the support arm to pass through, the width of the through slot along the length direction of the biopsy device handle is greater than the thickness of the support arm.

[0013] A preferred embodiment, the locking elastic member is a compression spring.

[0014] A preferred embodiment, the proximal end of the locking plate is provided with a spring mounting column, and the compression spring is sleeved on the spring mounting column.

[0015] The embodiment also discloses a biopsy device handle comprising at least the built-in gland locking structure, and the biopsy device handle further comprises:

[0016] A sliding plate is slidably connected in the housing,

[0017] A connecting rod is movably connected at one end to the gland and movably connected at the other end to the proximal end of the sliding plate.

[0018] A preferred embodiment, the housing is provided with a recess adjacent to the proximal end of the gland.

[0019] Compared with the prior art, the built-in gland locking structure and the biopsy device handle have the following beneficial effects:

[0020] (1) The locking plate of the built-in gland locking structure is located on the inner side of the housing, the locking groove is located on the side of the gland facing the housing, and the locking protrusion is located in the locking groove in the gland clamping state, so that the gland is locked at the position adhering to the housing. In this state, the built-in gland locking structure is hidden in the gland and the housing, and is not visible externally, so that the appearance of the biopsy device handle is more simple and the aesthetic degree of the biopsy device handle is better.

[0021] (2) Since the built-in gland locking structure is not visible, misoperation can be avoided.

[0022] (3) The operator does not need to operate the built-in gland locking structure to control the locking and releasing of the gland, so that the operation steps are less and the operator experience is better. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is an external structure schematic view of the biopsy device handle of the embodiment;

[0024] Figure 2 It is Figure 1 It is a structure schematic view of the gland turned up state of the biopsy device handle shown in the figure;

[0025] Figure 3 For Figure 2 The cross-sectional structure schematic view of the handle of the biopsy device is shown in the figure;

[0026] Figure 4 The partial structure schematic view of the handle of the biopsy device in the gland locking state is shown in the figure;

[0027] Figure 5 The structure schematic view of the handle of the biopsy device in the gland releasing state is shown in the figure;

[0028] Figure 6 The structure schematic view of the built-in gland locking structure in the handle of the biopsy device is shown in the figure;

[0029] Figure 7 The structure schematic view of the gland in the handle of the biopsy device is shown in the figure;

[0030] Figure 8 The internal structure schematic view of the housing in the handle of the biopsy device is shown in the figure. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0032] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0033] In the description of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, integrally connected, or detachably connected, it can be the communication inside two elements, it can be directly connected, or indirectly connected through an intermediate medium, for those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the embodiment, the end close to the operator is defined as the proximal end, and the end away from the operator is defined as the distal end.

[0035] The handle of the biopsy device of the embodiment is shown in the figure, which comprises a housing and a gland. Figures 1-3As shown, the device includes a housing 10 and a cap assembly 20. The cap assembly 20 includes a cap 21 hinged to the distal end of the housing 10, a slide plate 22, and a connecting rod 23. The slide plate 22 is slidably connected inside the housing. One end of the connecting rod 23 is movably connected to the cap 21, and the other end is movably connected to the proximal end of the slide plate 22.

[0036] As a preferred option, such as Figure 7 As shown, a pivot 211 is provided at the distal end of the pressure cap 21, and correspondingly, as... Figure 8 As shown, the far end of the housing 10 is provided with a pivot hole 13 that is adapted to the pivot 211, and the cover and the housing are hinged together by the cooperation of the pivot and the pivot hole.

[0037] As a special feature of this embodiment, a built-in pressure cap locking structure is provided between the housing 10 and the pressure cap 21. For example... Figures 3-7 As shown, the built-in pressure cap locking structure includes a locking plate 31, a locking protrusion 33, a locking elastic element 35, and a locking groove 212 disposed on the pressure cap. The locking plate 31 is slidably connected within the housing 10. Preferably, as shown... Figure 8 As shown, a limiting plate 14 located below the locking plate and a limiting step 15 located on the far side of the locking plate are provided inside the housing 10 near the proximal end, which are used to limit the position of the locking plate inside the housing.

[0038] In this embodiment, the biopsy device handle has a sliding assembly 40 for driving the needle tube within the housing. This sliding assembly 40 is driven by the cap assembly. Figure 3 When the cover 21 is flipped up, the distal end of the locking plate 31 does not contact the proximal end of the sliding assembly 40, and the distal end of the locking plate is limited by the limiting step 15.

[0039] exist Figure 3 In the indicated state, during the pressing of the cover 21, the sliding assembly 40 slides proximally until its proximal end contacts the distal end of the locking plate 31. As the sliding assembly continues to slide proximally, it pushes the locking plate 31 proximally, causing the locking protrusion 33 to enter the locking groove 212 and compressing the locking elastic element 35. Figure 4 The state shown. In this state, based on the cooperation between the locking protrusion 33 and the locking groove 212, the cover cannot be flipped up, and the sliding component is in a ready-to-fire state.

[0040] It should be noted that the sliding component 40 and the cooperation relationship between the sliding component 40 and the pressure cap component 20 are not the inventive point of this application. Existing technology can be used, and they will not be described in detail in this embodiment.

[0041] In the embodiment, the locking groove 212 is arranged on the side of the proximal end of the cap facing the shell, and the opening direction of the locking groove 212 is the distal end direction. Correspondingly, the locking protrusion 33 faces the locking groove 212.

[0042] In the embodiment, the locking protrusion 33 is arranged outside the shell, and the locking plate and the locking protrusion are connected through the support arm 32. Correspondingly, the shell is provided with a through groove 12 for accommodating the support arm 32, and the width of the through groove 12 along the length direction of the handle of the biopsy device is greater than the thickness of the support arm 32, so that the locking plate can be displaced along the length direction of the handle of the biopsy device.

[0043] In the embodiment, the proximal end of the locking plate 31 is provided with a spring mounting column 34, and the locking elastic member 35, which is preferably a compression spring, is sleeved on the spring mounting column 34. In the locked state of the cap, the locking elastic member 35 is compressed. After the slide assembly is fired and released, the locking elastic member drives the locking plate to move to the distal end, the locking protrusion 33 is moved out of the locking groove 212, and the locking of the cap is released, so that the cap can be turned up again.

[0044] As a preferred embodiment, as shown in the figure, the shell 10 is provided with a recess 11 adjacent to the proximal end of the cap, and the operator can operate the cap to be turned up at the recess 102 after the firing is completed. Figure 1

[0045] In summary, the above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.​

Claims

1. A built-in cap locking structure, disposed in the handle of a biopsy device, the biopsy device handle comprising at least a housing and a cap hinged to the distal end of the housing, characterized in that, The built-in gland locking structure comprises: a locking plate slidingly connected in the shell; a locking elastic member arranged between the proximal end of the locking plate and the shell; a locking groove arranged on the side of the proximal end face of the gland facing the shell, the opening direction of the locking groove being the distal end face; a locking protrusion fixedly connected with the locking plate and located outside the shell, the locking protrusion facing the locking groove.

2. The built-in gland lock structure according to claim 1, characterized by A limiting plate is arranged below the locking plate inside the shell near the proximal end.

3. The built-in gland lock structure according to claim 2, wherein A limiting step is arranged in the shell on the distal end side of the locking plate.

4. The built-in gland lock structure according to claim 1, wherein A support arm is further arranged between the locking plate and the locking protrusion, a through groove is arranged on the shell to accommodate the support arm, the width of the through groove along the length direction of the biopsy device handle being greater than the thickness of the support arm.

5. The built-in gland lock structure according to claim 1, wherein The locking elastic member is a compression spring.

6. The built-in gland lock structure according to claim 5, wherein The proximal end of the locking plate is provided with a spring mounting column, and the compression spring is sleeved on the spring mounting column.

7. A biopsy device handle characterized by, The biopsy device handle further comprises: a sliding plate slidingly connected in the shell, a connecting rod, one end of the connecting rod being movably connected to the gland, the other end of the connecting rod being movably connected to the proximal end of the sliding plate.

8. The biopsy device handle of claim 7, wherein the first and second portions are integrally formed. A recess is arranged on the shell near the proximal end of the gland.

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