Medical biopsy device

Abstract

The utility model discloses a medical biopsy device. The medical biopsy device comprises a driving assembly, a transmission assembly, a clamping assembly and a control assembly, wherein the transmission assembly is connected with the driving assembly; the clamping assembly is connected with the transmission assembly, and the clamping assembly has an open state and a closed state; the control assembly is connected with the driving assembly, can move relative to the driving assembly and is provided with a first position and a second position; under the condition that the control assembly is located at the first position, the driving assembly can drive the clamping assembly to be switched between the opening state and the closing state through the transmission assembly; and under the condition that the control assembly is located at the second position, the driving assembly cannot drive the clamping assembly to be switched between the opening state and the closing state through the transmission assembly.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and more specifically, to a medical biopsy device. Background Art

[0002] During the examination of some diseases, medical staff need to use instruments to take samples from the diseased area. For example, for patients with myocardial diseases, medical staff generally use a biopsy device to reach the heart through the vein or artery to take a piece of myocardial tissue, and then perform pathological analysis.

[0003] Since the biopsy device requires medical personnel to operate at the proximal end and then control the distal end of the device to take samples, if unnecessary touching occurs at the proximal end during operation, it may cause sampling failure, thereby affecting the treatment effect.

[0004] In view of this, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0005] One object of the present application is to provide a new technical solution for a medical biopsy device.

[0006] According to a first aspect of the present application, a medical biopsy device is provided, comprising:

[0007] Drive components;

[0008] A transmission assembly connected to the drive assembly;

[0009] A clamping assembly, the clamping assembly is connected to the transmission assembly, and the clamping assembly has an open state and a closed state;

[0010] A control assembly, the control assembly is connected to the drive assembly, the control assembly can move relative to the drive assembly and has a first position and a second position;

[0011] When the control component is in the first position, the drive component can drive the clamping component to switch between the open state and the closed state through the transmission component; when the control component is in the second position, the drive component cannot drive the clamping component to switch between the open state and the closed state through the transmission component.

[0012] Optionally, the driving assembly includes a first movable part, a second movable part and a traction wire, the first movable part and the second movable part are both hollow structures, the first movable part is sleeved on the outside of the second movable part, one end of the traction wire is connected to the transmission assembly, and the other end of the traction wire is passed through the second movable part and fixedly connected to the first movable part.

[0013] Optionally, the control assembly includes a pressing member, a linkage member and a first elastic member, the pressing member is disposed on the first movable member and the two are movably connected, the pressing member and the first movable member are provided with a first accommodating hole, the pressing member can move relative to the first movable member and has a first position and a second position;

[0014] The second movable member is provided with a second accommodating hole, the first elastic member is arranged in the second accommodating hole, and the first end of the linkage member is connected to the first elastic member;

[0015] When the pressing member is in the first position, the linkage member is separated from the first receiving hole; when the pressing member is in the second position, the second end of the linkage member is located in the first receiving hole and abuts against the pressing member;

[0016] When the pressing member is subjected to an external pressing force, the pressing member moves from the second position to the first position, the pressing member pushes the linkage member to disengage from the first accommodating hole, and the linkage member drives the first elastic member to elastically deform; when the external pressing force applied to the pressing member is cancelled, under the action of the elastic restoring force of the first elastic member, the second end of the linkage member enters the first accommodating hole.

[0017] Optionally, the pressing member includes a pressing shell and a pressing rod, the pressing shell is arranged on the first movable member and the two are movably connected, the pressing shell and the first movable member are provided with the first accommodating hole; the pressing rod is arranged in the first accommodating hole, and when the pressing member is in the second position, the second end of the linkage member is located in the first accommodating hole and abuts against one end of the pressing rod.

[0018] Optionally, the surface of the pressing shell is provided with anti-slip grooves.

[0019] Optionally, a guide surface is provided on the side of the second end of the linkage member.

[0020] Optionally, the second movable member includes a second body portion and a handle portion, the second body portion is rod-shaped, the handle portion is block-shaped, the cross-sectional area of ​​the handle portion is larger than the cross-sectional area of ​​the second body portion; the handle portion is arranged at the end of the second body portion away from the clamping assembly.

[0021] Optionally, the clamping assembly comprises a first clamping member and a second clamping member, the middle portion of the first clamping member and the middle portion of the second clamping member are hinged at a first hinge point, and the tail end of the first clamping member and the tail end of the second clamping member are respectively hinged to the transmission assembly;

[0022] The driving assembly drives the clamping assembly to switch between a closed state and an open state through the transmission assembly; when the head end of the first clamping member and the head end of the second clamping member are in contact with each other, the clamping assembly is in a closed state; when the head end of the first clamping member and the head end of the second clamping member are separated from each other, the clamping assembly is in an open state;

[0023] When the clamping assembly switches between the closed state and the open state, the first clamping member and the second clamping member both rotate around the first hinge point.

[0024] Optionally, the transmission assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged to the tail end of the first clamping member, and the first end of the second connecting rod is hinged to the tail end of the second clamping member; the second end of the first connecting rod and the second end of the second connecting rod are both hinged to the driving assembly.

[0025] Optionally, the clamping assembly also includes a fixed shell, one end of the fixed shell is hinged to the middle part of the first clamping member and the middle part of the second clamping member at the first hinge point; the fixed shell is provided with an avoidance groove for avoiding the transmission assembly at a position close to the first hinge point; a cavity is provided in the fixed shell, and part of the structure of the drive assembly passes through the cavity and is hinged to the second end of the first connecting rod and the second end of the second connecting rod.

[0026] Optionally, a clamp head groove is formed at the head end of the first clamping member facing the second clamping member, and a blade structure is provided at the edge of the clamp head groove at the top of the first clamping member.

[0027] Optionally, a clamp head groove is formed at the head end of the second clamping member facing the first clamping member, and a blade structure is provided at the edge of the clamp head groove at the top of the second clamping member.

[0028] In the medical biopsy device provided in the embodiment of the present application, by providing a control component, it is possible to prevent operational errors caused by accidental contact with the drive component, thereby improving the success rate of the biopsy operation.

[0029] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0031] Figure 1 is a schematic diagram of the overall structure of a medical biopsy device according to an embodiment of the present application;

[0032] Figure 2 is a schematic cross-sectional structural diagram of a medical biopsy device according to an embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of the partial structure of a medical biopsy device according to an embodiment of the present application. Figure 1 ;

[0034] Figure 4 This is a schematic diagram of the partial structure of a medical biopsy device according to an embodiment of the present application. Figure 2 ;

[0035] Figure 5 This is a schematic diagram of the partial structure of a medical biopsy device according to an embodiment of the present application. Figure 3 ;

[0036] Figure 6 is a schematic diagram of a partial cross-sectional structure of a medical biopsy device according to an embodiment of the present application;

[0037] Figure 7 is a schematic structural diagram of a clamping assembly in a medical biopsy device according to an embodiment of the present application;

[0038] Figure 8 It is a schematic diagram of the use of a medical biopsy device according to one embodiment of the present application.

[0039] Description of reference numerals:

[0040] 1. Driving assembly; 11. First movable member; 111. First main body; 112. Locking nut; 113. Locking head; 12. Second movable member; 121. Second main body; 122. Handle; 120. Second receiving hole; 1200. Travel groove; 13. Traction wire; 14. Elastic member; 15. Flexible guide member; 2. Transmission assembly; 21. First connecting rod; 22. Second connecting rod; 3. Clamping assembly; 31. First connecting rod A clamping member; 32, a second clamping member; 300, a first hinge point; 301, a pliers head groove; 302, a blade structure; 33, a fixing shell; 330, a avoidance groove; 331, a cavity; 4, a control component; 41, a pressing member; 410, a first accommodating hole; 411, a pressing shell; 412, a pressing rod; 42, a linkage member; 420, a guide surface; 43, a first elastic member; 5, a connecting member; 51, a connecting head; 52, a catheter. DETAILED DESCRIPTION

[0041] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0042] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0043] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0044] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0045] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0046] Reference Figure 1-Figure 7 As shown, according to one embodiment of the present application, a medical biopsy device is provided. The medical biopsy device comprises a driving assembly 1, a transmission assembly 2, a clamping assembly 3 and a control assembly 4, wherein the transmission assembly 2 is connected to the driving assembly 1; the clamping assembly 3 is connected to the transmission assembly 2, and the clamping assembly 3 has an open state and a closed state;

[0047] The control component 4 is connected to the driving component 1, and the control component 4 can move relative to the driving component 1 and has a first position and a second position;

[0048] When the control component 4 is in the first position, the drive component 1 can drive the clamping component 3 to switch between the open state and the closed state through the transmission component 2; when the control component 4 is in the second position, the drive component 1 cannot drive the clamping component 3 to switch between the open state and the closed state through the transmission component 2.

[0049] When the medical biopsy device provided in the embodiment of the present application is used for sampling operation, the medical biopsy device is delivered to the area to be biopsied of the right ventricle or the left ventricle via the femoral vein or the jugular vein, and then the medical staff holds the proximal end of the drive component 1 for operation, and the drive component 1 transmits the motion to the transmission component 2, and the transmission component 2 transmits the motion to the clamping component 3, first switching the clamping component 3 from a closed state to an open state; then the drive component 1 is operated, and the drive component 1 transmits the motion to the transmission component 2, and the transmission component 2 transmits the motion to the clamping component 3, switching the clamping component 3 from an open state to a closed state, thereby clamping the endocardial myocardial tissue, and finally the medical biopsy device is removed from the blood vessel, thereby completing the entire biopsy operation.

[0050] In the medical biopsy device provided in the embodiment of the present application, when the clamping component 3 needs to switch between the open state and the closed state, the control component 4 can be placed in the first position; and when the clamping component 3 does not need to switch between the open state and the closed state, the control component 4 can be placed in the second position. This can prevent operational errors caused by accidental contact with the drive component 1, thereby improving the success rate of the biopsy operation.

[0051] For example, the control component 4 is in the second position corresponding to the closed state of the clamping component 3, that is, after the clamping component 3 clamps the endocardial myocardial tissue and switches to the closed state, the control component 4 returns from the first position to the second position. At this time, the clamping component 3 will tightly clamp the endocardial myocardial tissue, and the clamping component 3 will not be opened unnecessarily due to accidental contact with the driving component 1, causing the endocardial myocardial tissue to fall off; thereby avoiding the occurrence of sampling failure.

[0052] Reference Figure 1-2 As shown, in one embodiment, the driving component 1 includes a first movable part 11, a second movable part 12 and a traction wire 13, the first movable part 11 and the second movable part 12 are both hollow structures, the first movable part 11 is sleeved on the outside of the second movable part 12, one end of the traction wire 13 is connected to the transmission component 2, and the other end of the traction wire 13 is passed through the second movable part 12 and fixedly connected to the first movable part 11.

[0053] In this specific example, since the first movable part 11 is sleeved on the outside of the second movable part 12, when the medical biopsy device is used for sampling operation, the medical staff holds the first movable part 11 and the second movable part 12 and allows the first movable part 11 to move relative to the second movable part 12. Since the first movable part 11 is fixedly connected to the traction wire 13, when the first movable part 11 moves relative to the second movable part 12, the traction wire 13 moves synchronously, thereby driving the clamping component 3 to move through the transmission component 2.

[0054] Reference Figure 3-4 As shown, in one embodiment, the control assembly 4 includes a pressing member 41, a linkage member 42 and a first elastic member 43, the pressing member 41 is disposed on the first movable member 11 and the two are movably connected, the pressing member 41 and the first movable member 11 are provided with a first accommodating hole 410, the pressing member 41 can move relative to the first movable member 11 and has a first position and a second position;

[0055] The second movable member 12 is provided with a second receiving hole 120, the first elastic member 43 is disposed in the second receiving hole 120, and the first end of the linkage member 42 is connected to the first elastic member 43;

[0056] When the pressing member 41 is in the first position, the linkage member 42 is separated from the first receiving hole 410; when the pressing member 41 is in the second position, the second end of the linkage member 42 is located in the first receiving hole 410 and abuts against the pressing member 41;

[0057] When the pressing member 41 is pressed by an external force, the pressing member 41 moves from the second position to the first position, and the pressing member 41 pushes the linkage member 42 to disengage from the first accommodating hole 410, and the linkage member 42 drives the first elastic member 43 to elastically deform; when the external pressing force on the pressing member 41 is cancelled, under the action of the elastic restoring force of the first elastic member 43, the second end of the linkage member 42 enters the first accommodating hole 410.

[0058] In this specific example, when the second end of the linkage member 42 enters the first accommodating hole 410, since the first end of the linkage member 42 is connected to the first elastic member 43 and is located in the second accommodating hole 120, the linkage member 42 is simultaneously inserted into the first accommodating hole 410 and the second accommodating hole 120; and since the first accommodating hole 410 and the second accommodating hole 120 are respectively located at the first movable member 11 and the second movable member 12, when the second end of the linkage member 42 enters the first accommodating hole 410, the first movable member 11 and the second movable member 12 cannot move relative to each other, that is, the driving component 1 cannot drive the clamping component 3 to switch between the open state and the closed state through the transmission component 2.

[0059] When the pressing member 41 is pressed by an external force and the second end of the linkage member 42 is disengaged from the first accommodating hole 410, the linkage member 42 releases the first movable member 11, so that the first movable member 11 and the second movable member 12 can move relative to each other, that is, the driving component 1 can drive the clamping component 3 to switch between the open state and the closed state through the transmission component 2.

[0060] Therefore, the first position of the control component 4 corresponds to the position where the linkage member 42 is separated from the first receiving hole 410 , and the second position of the control component 4 corresponds to the position where the linkage member 42 enters the first receiving hole 410 .

[0061] It can be understood that when the first accommodating hole 410 and the second accommodating hole 120 are aligned and connected to each other, and the external force pressing action on the pressing member 41 is cancelled, under the action of the elastic restoring force of the first elastic member 43, the second end of the linkage member 42 will automatically enter the first accommodating hole 410.

[0062] Reference Figure 3-4As shown, in one embodiment, the pressing member 41 includes a pressing shell 411 and a pressing rod 412, the pressing shell 411 is arranged on the first movable member 11 and the two are movably connected, the pressing shell 411 and the first movable member 11 are provided with the first accommodating hole 410; the pressing rod 412 is arranged in the first accommodating hole 410, and when the pressing member 41 is in the second position, the second end of the linkage member 42 is located in the first accommodating hole 410 and abuts against one end of the pressing rod 412.

[0063] In this specific example, external force acts on the pressing shell 411, that is, the external force applies a pressing force to the pressing shell 411, and the pressing shell 411 drives the pressing rod 412 to move toward the linkage part 42, and the pressing rod 412 pushes the linkage part 42 out of the first accommodating hole 410, so that the first movable part 11 and the second movable part 12 can move relative to each other.

[0064] The setting of the pressing shell 411 facilitates the pressing operation by medical personnel, while the pressing rod 412 can exert precise force on the linkage member 42 .

[0065] Reference Figure 1 , Figure 4 As shown, in one embodiment, the surface of the pressing shell 411 is provided with anti-slip grooves.

[0066] In this specific example, anti-slip grooves are provided on the surface of the pressing shell 411 to prevent the pressing shell 411 from slipping when an external force applies a pressing force to the pressing shell 411 .

[0067] Reference Figure 3-4 As shown, in one embodiment, a guide surface 420 is provided on the side of the second end of the linkage member 42 .

[0068] In this specific example, the provision of the guide surface 420 enables the linkage member 42 to enter and exit the first accommodating hole 410 more smoothly, thereby avoiding a jam that occurs when the linkage member 42 enters and exits the first accommodating hole 410 .

[0069] Reference Figure 2 As shown, in one embodiment, the second movable member 12 includes a second body portion 121 and a handle portion 122, the second body portion 121 is rod-shaped, the handle portion 122 is block-shaped, and the cross-sectional area of ​​the handle portion 122 is larger than the cross-sectional area of ​​the second body portion 121; the handle portion 122 is arranged at the end of the second body portion 121 away from the clamping assembly 3.

[0070] In this specific example, the provision of the handle portion 122 can make it more convenient for medical personnel to hold the second movable member 12 to perform related operations on the first movable member 11 and the second movable member 12 .

[0071] Reference Figure 6-7 As shown, in one embodiment, the clamping assembly 3 includes a first clamping member 31 and a second clamping member 32, the middle portion of the first clamping member 31 and the middle portion of the second clamping member 32 are hinged at a first hinge point 300, and the tail end of the first clamping member 31 and the tail end of the second clamping member 32 are respectively hinged to the transmission assembly 2;

[0072] The driving assembly 1 drives the clamping assembly 3 to switch between a closed state and an open state through the transmission assembly 2; when the head end of the first clamping member 31 and the head end of the second clamping member 32 are in contact with each other, the clamping assembly 3 is in a closed state; when the head end of the first clamping member 31 and the head end of the second clamping member 32 are separated from each other, the clamping assembly 3 is in an open state;

[0073] When the clamping assembly 3 switches between the closed state and the open state, the first clamping member 31 and the second clamping member 32 both rotate around the first hinge point 300 .

[0074] In this specific example, the driving component 1 transmits the motion to the transmission component 2, and the transmission component 2 transmits the motion to the clamping component 3, firstly switching the clamping component 3 from the closed state to the open state, that is, the head end of the first clamping member 31 and the head end of the second clamping member 32 switch from the mutually attached state to the mutually separated state; then the driving component 1 is operated, the driving component 1 transmits the motion to the transmission component 2, and the transmission component 2 transmits the motion to the clamping component 3, so that the clamping component 3 switches from the open state to the closed state, that is, the head end of the first clamping member 31 and the head end of the second clamping member 32 switch from the mutually separated state to the mutually attached state, so that the endocardial myocardial tissue can be clamped. Since the first clamping member 31 and the second clamping member 32 both rotate around the first hinge point 300 when the clamping component 3 switches between the closed state and the open state, compared with the unilateral rotation of one of the first clamping member 31 and the second clamping member 32, the bilateral rotation of the first clamping member 31 and the second clamping member 32 can improve the accuracy of the operation.

[0075] Specifically, during the process of the first movable member 11 moving relative to the second movable member 12 toward the clamping assembly 3, the first movable member 11 pushes the traction wire 13 forward, and the traction wire 13 pushes the transmission assembly 2 forward, thereby driving the head end of the first clamping member 31 and the head end of the second clamping member 32 to move away from each other and open; during the process of the first movable member 11 moving relative to the second movable member 12 away from the clamping assembly 3, the first movable member 11 pulls the traction wire 13 backward, and the traction wire 13 pulls the transmission assembly 2 backward, thereby driving the head end of the first clamping member 31 and the head end of the second clamping member 32 to move closer to each other and close.

[0076] Reference Figure 6-7 As shown, in one embodiment, the transmission assembly 2 includes a first connecting rod 21 and a second connecting rod 22, the first end of the first connecting rod 21 is hinged to the tail end of the first clamping member 31, and the first end of the second connecting rod 22 is hinged to the tail end of the second clamping member 32; the second end of the first connecting rod 21 and the second end of the second connecting rod 22 are both hinged to the driving assembly 1.

[0077] In this specific example, the transmission assembly 2 is a connecting rod assembly, and the driving assembly 1 transmits motion to the clamping assembly 3 through the connecting rod assembly. The connecting rod assembly is not only simple and reliable in structure, but also transmits motion more smoothly, thereby reducing the possibility of operational errors.

[0078] Specifically, the second end of the first connecting rod 21 away from the clamping assembly 3 and the second end of the second connecting rod 22 away from the clamping assembly 3 are connected at the same pin, and the pin is also hinged to the driving assembly 1; the first end of the first connecting rod 21 close to the clamping assembly 3 is hinged to the tail end of the first clamping member 31, and the first end of the second connecting rod 22 close to the clamping assembly 3 is hinged to the tail end of the second clamping member 32;

[0079] When the driving assembly 1 applies a force to the transmission assembly 2, the first connecting rod 21 and the second connecting rod 22 will respectively drive the first clamping member 31 and the second clamping member 32 to perform corresponding actions. Specifically, when the driving assembly 1 pushes the transmission assembly 2 forward, the first end of the first connecting rod 21 and the first end of the second connecting rod 22 move away from each other and open, and at the same time, the tail end of the first clamping member 31 and the tail end of the second clamping member 32 move away from each other and open, so that the head end of the first clamping member 31 and the head end of the second clamping member 32 also move away from each other and open; when the driving assembly 1 pulls the transmission assembly 2 backward, the first end of the first connecting rod 21 and the first end of the second connecting rod 22 move closer to each other and close together, and at the same time, the tail end of the first clamping member 31 and the tail end of the second clamping member 32 move closer to each other and close together, so that the head end of the first clamping member 31 and the head end of the second clamping member 32 also move closer to each other and close together.

[0080] Reference Figure 6-7 As shown, in one embodiment, the clamping assembly 3 also includes a fixed shell 33, one end of the fixed shell 33 is hinged to the middle of the first clamping member 31 and the middle of the second clamping member 32 at the first hinge point 300; the fixed shell 33 is provided with an avoidance groove 330 for avoiding the transmission assembly 2 at a position close to the first hinge point 300; a cavity 331 is provided in the fixed shell 33, and a part of the structure of the drive assembly 1 passes through the cavity 331 and is hinged to the second end of the first connecting rod 21 and the second end of the second connecting rod 22.

[0081] In this specific example, the fixed shell 33 can connect the first clamping member 31, the second clamping member 32 and other components; and the fixed shell 33 is hinged to the middle part of the first clamping member 31 and the middle part of the second clamping member 32 at the first hinge point 300, so as not to affect the movement of the first clamping member 31 and the second clamping member 32; in addition, the avoidance groove 330 of the fixed shell 33 can avoid the movement trajectory of the transmission component 2; and the cavity 331 opened in the fixed shell 33 does not affect the connection between the drive component 1 and the transmission component 2.

[0082] Reference Figure 5 As shown, in one embodiment, the first main body portion 111 is a hollow structure, and two opposite sides of the first main body portion 111 where the control component 4 is not provided are provided with through holes connected to the hollow structure, and the first movable part 11 also includes a locking head 113 and a locking nut 112, the locking head 113 and the locking nut 112 are respectively inserted into the through holes from both sides and are threadedly connected to each other, and the end of the traction wire 13 away from the clamping component 3 is clamped between the locking head 113 and the locking nut 112 for locking.

[0083] Reference Figure 2 As shown, in one embodiment, the second movable member 12 is provided with a travel groove 1200 ; the first movable member 11 can move relative to the second movable member 12 within the range of the travel groove 1200 without being blocked.

[0084] Reference Figure 5 As shown, in one embodiment, a step surface is formed in the hollow structure of the second movable member 12; the driving assembly 1 also includes a second elastic member 14, the second elastic member 14 is sleeved on the outside of the traction wire 13, and one end of the second elastic member 14 is fixedly connected to the first movable member 11, and the other end of the second elastic member 14 abuts against the side of the step surface facing away from the clamping assembly 3.

[0085] In this specific example, when the medical staff does not apply external force to the first movable part 11, under the action of the elastic restoring force of the second elastic part 14, the first movable part 11 automatically moves away from the clamping assembly 3 and retreats, so that the first movable part 11 pulls the traction wire 13 backward, and the traction wire 13 pulls the transmission assembly 2 backward, and the head end of the first clamping member 31 and the head end of the second clamping member 32 approach each other and retract, that is, the second elastic member 14 can automatically close the clamping assembly 3, which makes it more convenient for medical staff to perform sampling operations.

[0086] It can be understood that, when the first movable member 11 moves toward the clamping assembly 3 under the action of external force, the second elastic member 14 is elastically compressed.

[0087] Reference Figure 5As shown, in one embodiment, the driving assembly 1 further includes a flexible guide 15 , which is sleeved on the outside of the traction wire 13 and located close to the clamping assembly 3 .

[0088] In this specific example, the flexible guide 15 is provided to guide the movement direction of the traction wire 13 and quickly restore the traction wire 13 when it is bent.

[0089] Furthermore, the traction wire 13 is a steel wire; the flexible guide member 15 is a spring, and the flexible guide member 15 is fixedly connected to the end of the fixed shell 33 away from the first clamping member 31 and the second clamping member 32 .

[0090] Reference Figure 2 As shown, in one embodiment, the medical biopsy device further includes a connecting member 5 , which is sleeved on the outside of the traction wire 13 , and the connecting member 5 is connected between the second movable member 12 and the clamping assembly 3 .

[0091] In this specific example, the connecting member 5 plays a connecting role between the fixed shell 33 and the second movable member 12 ; and the connecting member 5 is sleeved on the outside of the traction wire 13 to protect the traction wire 13 .

[0092] Reference Figure 2 As shown, in one embodiment, the connecting member 5 includes a connecting head 51 and a conduit 52, one end of the connecting head 51 is threadedly connected to the second movable member 12, the other end of the connecting head 51 is fixedly connected to one end of the conduit 52, and the other end of the conduit 52 is fixedly connected to the clamping assembly 3.

[0093] In this specific example, the connector 5 includes a connector 51 and a conduit 52, one end of the connector 51 is threadedly connected to the end of the second movable member 12 close to the clamping assembly 3, and the other end is fixedly connected to one end of the conduit 52, and the other end of the conduit 52 is fixedly connected to the clamping assembly 3. In this way, the clamping assembly 3 and the driving assembly 1 can be connected together through the connector 5 to form a relatively stable structure.

[0094] Optionally, the connector 51 and the catheter 52 may be bonded together.

[0095] Reference Figure 7 As shown, in one embodiment, the head end of the first clamping member 31 is provided with a clamp head groove 301 facing the second clamping member 32, and the top of the first clamping member 31 is provided with a blade structure 302 at the edge of the clamp head groove 301. And / or

[0096] A clamp head groove 301 is formed at the head end of the second clamping member 32 facing the first clamping member 31 , and a blade structure 302 is provided at the edge of the clamp head groove 301 at the top of the second clamping member 32 .

[0097] In this specific example, the forceps head groove 301 can accommodate the cut tissue when closed; a blade structure 302 is provided at the top of the groove of the forceps head groove 301. When the first clamping member 31 and the second clamping member 32 are closed, the contact surface at the blade structure 302 is relatively small, so the sampled tissue can be effectively cut, thereby achieving the purpose of good surgical effect, short operation time and good sampling effect.

[0098] Reference Figure 8 As shown, the clamping assembly 3 is placed in the catheter 01, and the imaging device is used to observe whether the clamping assembly 3 reaches the biopsy area. Then the medical staff holds the driving assembly 1, unlocks the lock on the control assembly 4 with one hand, and controls the connecting member 5 with the other hand to extend into the position in the catheter 7 to ensure that the sample can be collected safely.

[0099] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0100] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A medical biopsy device, characterized in that: include: A drive assembly (1); A transmission assembly (2), wherein the transmission assembly (2) is connected to the drive assembly (1); A clamping assembly (3), the clamping assembly (3) being connected to the transmission assembly (2), the clamping assembly (3) having an open state and a closed state; A control component (4), the control component (4) being connected to the drive component (1), the control component (4) being movable relative to the drive component (1) and having a first position and a second position; When the control component (4) is in the first position, the drive component (1) can drive the clamping component (3) to switch between the open state and the closed state through the transmission component (2); when the control component (4) is in the second position, the drive component (1) cannot drive the clamping component (3) to switch between the open state and the closed state through the transmission component (2).

2. The medical biopsy device according to claim 1, characterized in that: The driving assembly (1) comprises a first movable member (11), a second movable member (12) and a traction wire (13); the first movable member (11) and the second movable member (12) are both hollow structures; the first movable member (11) is sleeved on the outside of the second movable member (12); one end of the traction wire (13) is connected to the transmission assembly (2); and the other end of the traction wire (13) is passed through the second movable member (12) and fixedly connected to the first movable member (11).

3. The medical biopsy device according to claim 2, characterized in that: The control assembly (4) comprises a pressing member (41), a linkage member (42) and a first elastic member (43); the pressing member (41) is arranged on the first movable member (11) and the two are movably connected; the pressing member (41) and the first movable member (11) are provided with a first receiving hole (410); the pressing member (41) can move relative to the first movable member (11) and has a first position and a second position; The second movable member (12) is provided with a second accommodating hole (120), the first elastic member (43) is arranged in the second accommodating hole (120), and the first end of the linkage member (42) is connected to the first elastic member (43); When the pressing member (41) is in the first position, the linkage member (42) is separated from the first receiving hole (410); when the pressing member (41) is in the second position, the second end of the linkage member (42) is located in the first receiving hole (410) and abuts against the pressing member (41); When the pressing member (41) is pressed by an external force, the pressing member (41) moves from the second position to the first position, the pressing member (41) pushes the linkage member (42) to disengage from the first accommodating hole (410), and the linkage member (42) drives the first elastic member (43) to elastically deform; when the pressing force applied to the pressing member (41) is cancelled, under the action of the elastic restoring force of the first elastic member (43), the second end of the linkage member (42) enters the first accommodating hole (410).

4. The medical biopsy device according to claim 3, characterized in that: The pressing member (41) comprises a pressing shell (411) and a pressing rod (412); the pressing shell (411) is arranged on the first movable member (11) and the two are movably connected; the pressing shell (411) and the first movable member (11) are provided with the first accommodating hole (410); the pressing rod (412) is arranged in the first accommodating hole (410); when the pressing member (41) is in the second position, the second end of the linkage member (42) is located in the first accommodating hole (410) and abuts against one end of the pressing rod (412).

5. The medical biopsy device according to claim 4, characterized in that: The surface of the pressing shell (411) is provided with anti-slip grooves.

6. The medical biopsy device according to claim 3, characterized in that: A guide surface (420) is provided on the side of the second end of the linkage member (42).

7. The medical biopsy device according to claim 2, characterized in that: The second movable member (12) comprises a second main body portion (121) and a handle portion (122); the second main body portion (121) is rod-shaped, the handle portion (122) is block-shaped, and the cross-sectional area of ​​the handle portion (122) is larger than the cross-sectional area of ​​the second main body portion (121); the handle portion (122) is arranged at an end of the second main body portion (121) away from the clamping assembly (3).

8. The medical biopsy device according to claim 1, characterized in that: The clamping assembly (3) comprises a first clamping member (31) and a second clamping member (32), wherein the middle portion of the first clamping member (31) and the middle portion of the second clamping member (32) are hinged at a first hinge point (300), and the tail end of the first clamping member (31) and the tail end of the second clamping member (32) are respectively hinged to the transmission assembly (2); The driving component (1) drives the clamping component (3) to switch between a closed state and an open state through the transmission component (2); when the head end of the first clamping member (31) and the head end of the second clamping member (32) are in contact with each other, the clamping component (3) is in a closed state; when the head end of the first clamping member (31) and the head end of the second clamping member (32) are separated from each other, the clamping component (3) is in an open state; When the clamping assembly (3) is switched between a closed state and an open state, the first clamping member (31) and the second clamping member (32) both rotate around the first hinge point (300).

9. The medical biopsy device according to claim 8, characterized in that: The transmission assembly (2) comprises a first connecting rod (21) and a second connecting rod (22); the first end of the first connecting rod (21) is hinged to the rear end of the first clamping member (31), and the first end of the second connecting rod (22) is hinged to the rear end of the second clamping member (32); the second end of the first connecting rod (21) and the second end of the second connecting rod (22) are both hinged to the driving assembly (1).

10. The medical biopsy device according to claim 9, characterized in that: The clamping assembly (3) further comprises a fixed shell (33), one end of which is hinged to the middle of the first clamping member (31) and the middle of the second clamping member (32) at the first hinge point (300); the fixed shell (33) is provided with an avoidance groove (330) for avoiding the transmission assembly (2) at a position close to the first hinge point (300); a cavity (331) is provided in the fixed shell (33), and a part of the structure of the drive assembly (1) passes through the cavity (331) and is hinged to the second end of the first connecting rod (21) and the second end of the second connecting rod (22).

11. The medical biopsy device according to claim 8, characterized in that: A clamp head groove (301) is provided at the head end of the first clamping member (31) facing the second clamping member (32), and a blade structure (302) is provided at the top of the first clamping member (31) at the edge of the clamp head groove (301).

12. The medical biopsy device according to claim 8 or 11, characterized in that: A clamp head groove (301) is provided at the head end of the second clamping member (32) facing the first clamping member (31), and a blade structure (302) is provided at the top of the second clamping member (32) at the edge of the clamp head groove (301).

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