Sampling pliers with lever structure

Abstract

The utility model relates to a sampling clamp with a lever structure. The sampling clamp comprises a driving rod, the sampling mechanism is positioned at the driving end part of the driving rod and comprises a first clamping piece and a second clamping piece which are arranged in an opening and closing manner; wherein the front ends of the first clamping piece and the second clamping piece are opened and closed to form a sampling clamping part, the rear ends of the first clamping piece and the second clamping piece are in sliding fit with the driving end of the driving rod to drive the sampling clamping part to be opened and closed, and the rear ends of the first clamping piece and the second clamping piece form driven parts to be in sliding fit with the driving end of the driving rod to drive the sampling clamping part to be opened and closed. The first clamping piece and the second clamping piece are rotationally connected through a connecting shaft. And the first clamping piece and the second clamping piece are driven to rotate around the connecting shaft. According to the sampling forceps with the lever structure, the use convenience degree of the sampling forceps is improved, and the situation that the sampling wound area of a patient is large due to the fact that the contact area of the sampling forceps and the sampling position of the patient is large due to the fact that an operator exerts too much force is avoided.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to an instrument related to cell sampling or biopsy examination. Background Art

[0002] Sampling forceps is a medical device used to collect certain tissue, cell or tumor samples in the human body for observation and pathological examination. There are many types of sampling forceps, which are widely used in the medical field, such as gastrointestinal endoscopes, pulmonary endoscopes, hysteroscopes, nasal endoscopes, etc. Sampling forceps with different structures have their own functional uses. The sampling forceps includes a sampling mechanism and a driving component that drives the sampling mechanism. During the operation, the movement of the driving component generates pulling and pushing forces on the sampling mechanism, thereby causing the two scissor-shaped connected sampling clamps on the sampling mechanism to move, and finally realize the clamping and loosening steps.

[0003] The application number is CN202222615174.1; the patent name is a pushing structure for sampling forceps; it discloses a sampling forceps with a detachable pushing component; however, during the use of this sampling forceps, in order to overcome the warning force of the sampling forceps and make the sampling mechanism work, the operator may use excessive force to push the sampling mechanism of the sampling forceps too close to the patient's sampling site; it is easy to make the contact area between the sampling forceps and the patient's sampling site too large, causing greater trauma to the patient during sampling.

[0004] Therefore, in order to solve the technical problem of causing greater trauma to patients during the sampling process, a new sampling forceps is urgently needed.

[0005] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Utility Model Content

[0006] The purpose of the utility model is to provide a sampling pliers with a lever structure to solve the above problems.

[0007] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0008] Sampling pliers with lever structure, including:

[0009] drive rod;

[0010] The sampling mechanism is located at the driving end of the driving rod and includes a first clamping member and a second clamping member that are opened and closed;

[0011] The front ends of the first clamping member and the second clamping member are opened and closed to form a sampling clamping portion, and the rear ends thereof are slidably matched with the driving end of the driving rod to drive the sampling clamping portion to open and close.

[0012] In an optional embodiment, the rear ends of the first clamping member and the second clamping member constitute a driven portion to slidably cooperate with the driving end of the driving rod to drive the sampling clamping portion to open and close.

[0013] In an optional embodiment, the first clamping member and the second clamping member are rotatably connected via a connecting shaft;

[0014] The connecting shaft passes through the connection between the first clamping member and the second clamping member near the sampling clamping portion, so that when the driving end of the driving rod slides on the driven portion, the first clamping member and the second clamping member are driven to rotate around the connecting shaft.

[0015] In an optional embodiment, the distance between the end of the driven portion and the connecting shaft is greater than the distance between the end of the sampling clamping portion and the connecting shaft;

[0016] The driven part is provided with a connecting groove for slidingly cooperating with the driving end of the driving rod so that the driven part maintains contact with the driving rod.

[0017] In an optional embodiment, the sampling mechanism further comprises a mounting frame and a mounting rod, wherein the mounting frame is provided with a guide groove;

[0018] The installation rod passes through the driving rod, and the end of the installation rod is slidably fitted in the guide groove to guide the driving rod.

[0019] In an optional embodiment, the mounting rod is fixedly connected to the middle portion of the driving end of the driving rod;

[0020] There are specifically two guide grooves, which are used to correspond to the two ends of the mounting rod.

[0021] In an optional embodiment, the sampling forceps further comprises a main body, the main body comprising a guide tube and a slide rod, and a hollow portion is provided in the middle of the slide rod;

[0022] The driving rod is arranged on the driving member of the driving component, the driving member is sleeved on the sliding rod, and the connecting plate in the middle of the driving member is located in the hollow part;

[0023] One end of the driving rod is located in the hollow portion, and the other end passes through the guide tube and the installation frame.

[0024] In an optional embodiment, one end of the driving rod is provided on the driving member, and the other end is connected to the mounting rod;

[0025] The driving member is suitable for controlling the rotation of the first clamping member and the second clamping member through a driving rod.

[0026] In an optional embodiment, the main body includes a slide bar;

[0027] A driving component, which is sleeved on the side of the slide rod, and the driving component includes a driving rod;

[0028] The sampling mechanism is located at the driving end of the driving rod and includes a first clamping member and a second clamping member that are opened and closed;

[0029] The front ends of the first clamping member and the second clamping member are opened and closed to form a sampling clamping portion, and the rear ends thereof are slidably matched with the driving end of the driving rod to drive the sampling clamping portion to open and close.

[0030] In an optional embodiment, the rear ends of the first clamping member and the second clamping member constitute a driven portion to slidably cooperate with the driving end of the driving rod to drive the sampling clamping portion to open and close;

[0031] The first clamping member and the second clamping member are rotatably connected around a connecting shaft, and the connecting shaft passes through the first clamping member and the second clamping member at a connection point near the sampling clamping portion, so that when the driving end of the driving rod slides at the driven portion, the first clamping member and the second clamping member are driven to rotate along the connecting shaft.

[0032] The beneficial effects of the present invention are as follows: the sampling forceps with a lever structure are used in conjunction with the driving rod, the first clamping member and the second clamping member to manufacture a sampling forceps with a lever structure instead of a sampling forceps without a lever structure, so that the operator can use a smaller thrust to control the opening size of the sampling mechanism when using the sampling forceps, thereby improving the convenience of using the sampling forceps and avoiding the situation in which the sampling forceps and the patient's sampling area have a large contact area due to excessive force applied by the operator, resulting in a large wound area on the patient during sampling.

[0033] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1It is a schematic diagram of the overall structure of the existing sampling forceps in the utility model.

[0037] Figure 2 This is a schematic diagram of the overall structure of a sampling forceps with a lever structure provided in one embodiment of the utility model.

[0038] Figure 3 This is a partial structural diagram of a sampling forceps with a lever structure provided in one embodiment of the utility model.

[0039] Figure 4 This is a schematic diagram of the sampling mechanism structure provided in one embodiment of the present utility model.

[0040] Figure 5 This is a schematic diagram of a mounting frame for a sampling forceps with a lever structure provided in one embodiment of the present utility model.

[0041] Figure 6 This is a partial structural diagram of a sampling mechanism of a sampling forceps with a lever structure provided in one embodiment of the utility model.

[0042] In the figure: 1. Main body; 11. Sliding rod; 12. Guide tube; 2. Driving component; 21. Driving member; 22. Driving rod; 3. Sampling mechanism; 31. Mounting frame; 32. Guide groove; 33. First clamping member; 34. Second clamping member; 35. Connecting groove; 36. Mounting rod; 37. Connecting shaft; 38. Sampling clamping part; 39. Follower. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0044] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0045] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0046] The terms used herein are intended only to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a," "an," and "the" may also be intended to include the plural forms, unless the context clearly indicates otherwise. The terms "include," "comprise," and "have" are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof.

[0047] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0049] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0050] Since the operator needs to push the pushing component to move when using the sampling forceps, and since the warning force between the driving component and the slide rod of each sampling forceps is different, or the sampling forceps comes into contact with liquid during use, causing the warning force between the driving component and the slide rod to change, the operator first drives the sampling forceps close to the patient's sampling site during use, and then pushes the driving component to move toward the first clamping component and the second clamping component. Often, due to the large warning force, the operator uses too much force to overcome the warning force, pushing the entire sampling forceps too close to the patient's sampling site, thereby increasing the contact area between the sampling forceps and the patient's sampling site.

[0051] The defects in the above solutions are the results of the inventors' practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in the present disclosure below should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0052] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0053] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0054] refer to Figures 1 to 3 In at least one embodiment, a sampling forceps with a lever structure is provided, comprising:

[0055] The main body 1 is fixed with a guide tube 12 for guiding the driving rod 22; the driving component 2 includes a driving member 21 and a driving rod 22, the driving rod 22 is fixed on the driving member 21 and passes through the guide tube 12 (refer to Figure 3 ), which is used to ensure that the driving rod 22 moves synchronously with the driving member 21; the driving rod 22 is made of metal.

[0056] refer to Figures 1 to 4 In some embodiments, the sampling mechanism 3 includes a first clamping member 33 and a second clamping member 34 for cooperating with each other to remove the tissue at the patient's sampling site. The first clamping member 33 and the second clamping member 34 are rotatably connected away from the driving rod 22 so that the connection between the two is close to the sampling clamping portion 38 (refer to Figure 4), used to ensure that the length of the first clamping member 33 and the second clamping member 34 in the driven part 39 is greater than the length of the first clamping member 33 and the second clamping member 34 in the sampling clamping part 38, thereby cooperating with the connecting shaft 37 to form a lever structure, and a smaller force can be used to drive the driven part 39 to move, driving the sampling clamping part 38 to clamp the patient tissue; the driving end of the driving rod 22 is slidably engaged with the first clamping member 33 and the second clamping member 34 to control the size of the opening of the sampling mechanism 3.

[0057] In some embodiments, the first clamping member 33 and the second clamping member 34 also include a follower portion 39 for being driven by the driving rod 22; the first clamping member 33 and the second clamping member 34 are movably connected through a connecting shaft 37, and the connecting shaft 37 is located on the first clamping member 33 and the second clamping member 34 near the sampling clamping portion 38, so that the follower portion 39 and the sampling clamping portion 38 form a lever structure or a scissors structure through the connecting shaft 37.

[0058] In some embodiments, the length of the first clamping member 33 and the second clamping member 34 in the driven portion 39 is greater than the length of the first clamping member 33 and the second clamping member 34 in the sampling clamping portion 38, and a smaller force can be used to drive the driven portion 39 to move, driving the sampling clamping portion 38 to clamp the patient tissue; the first clamping member 33 and the second clamping member 34 at the driven portion 39 are provided with a connecting groove 35 for slidingly cooperating with the driving end of the driving rod 22, so that the driven portion 39 maintains contact with the driving rod 22.

[0059] In some embodiments, the connecting groove 35 is located on the surface of the first clamping member 33 and the second clamping member 34 facing the driving rod 22 (refer to Figure 4 ), the cross-section of the connecting groove 35 away from the driving rod 22 is larger than the cross-section close to the driving rod 22, so as to prevent the driving end of the driving rod 22 from separating from the driven part 39; the thickness of the driving end of the driving rod 22 is greater than the thickness of the end of the driving rod 22 located outside the connecting groove 35, so as to prevent the driving end of the driving rod 22 from automatically separating from the connecting groove 35.

[0060] refer to Figures 4 to 6 In some embodiments, the sampling mechanism 3 further includes a mounting frame 31 and a mounting rod 36. The mounting rod 36 passes through the end of the driving rod 22 and is movably connected to the guide groove 32 of the mounting frame 31 to guide the driving rod 22 and ensure the accuracy of the movement path of the end of the driving rod 22 in the mounting frame 31.

[0061] In some embodiments, the mounting rod 36 is fixedly connected to the middle portion of the driving rod 22 in the length direction; there are specifically two guide grooves 32 to correspond to the two ends of the mounting rod 36.

[0062] refer to Figures 1 to 4In some embodiments, the main body 1 also includes a sliding rod 11, a hollow portion is provided in the middle of the sliding rod 11, and the driving member 21 is mounted on the sliding rod 11. The connecting plate in the middle of the driving member 21 is located in the hollow portion, which is used to guide the driving member 21 and prevent the driving member 21 from separating from the sliding rod 11. One end of the driving rod 22 is located in the hollow portion, and the other end passes through the guide tube 12 and the mounting frame 31, so that the end of the driving rod 22 away from the driving member 21 can contact the first clamping member 33 and the second clamping member 34.

[0063] In some embodiments, one end of the driving rod 22 is fixed to the driving member 21 and the other end is connected to the mounting rod 36 to ensure that the driving member 21 can control the first clamping member 33 and the second clamping member 34 to rotate around the connecting shaft 37 through the driving rod 22.

[0064] The working principle of the present invention is as follows: before starting to use the sampling pliers with a lever structure, the sampling pliers with a lever structure are taken out; when starting to use the sampling pliers with a lever structure: the operator first operates the driving member 21 to move it in a direction close to the sampling mechanism 3, during which the driving member 21 pushes the driving rod 22 close to the sampling mechanism 3, during which the driving end of the driving rod 22 slides in the connecting groove 35 in a direction close to the mounting rod 36, so that the ends of the first clamping member 33 and the second clamping member 34 move away from each other, thereby driving the opening of the sampling clamping portion 38 to open, that is, opening the opening of the sampling mechanism 3, and the operator stops operating the driving member 21 when the opening of the sampling mechanism 3 is maximized. The operator then moves the sampling forceps closer to the patient's sampling site, and then manually pulls the drive member 21 in the opposite direction, which drives the drive rod 22 away from the sampling mechanism 3. During this process, the driving end of the drive rod 22 moves in the opposite direction within the connecting groove 35, that is, the driving end of the drive rod 22 moves in the connecting groove 35 away from the mounting rod 36. Driven by the driving end of the drive rod 22, the ends of the first clamping member 33 and the second clamping member 34 approach each other, thereby driving the sampling clamp 38 to remove the tissue from the patient's sampling site, thus completing the sampling step. The operator then drives the sampling forceps to the sampling position, controls the sampling mechanism 3 of the sampling forceps to open and place the sampled tissue at the sampling position, and finally cleans and stores the sampling forceps.

[0065] The above embodiments are used to illustrate the present invention in an optional embodiment, but the present invention is not limited to these specific embodiments. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be understood to be within the scope of protection of the present invention.

Claims

1. A sampling forceps with a lever structure, characterized in that: include: A driving rod (22); The sampling mechanism (3) is located at the driving end of the driving rod (22), and includes a first clamping member (33) and a second clamping member (34) that are arranged to open and close; wherein The front ends of the first clamping member (33) and the second clamping member (34) are opened and closed to form a sampling clamping portion (38), and the rear ends thereof are slidably engaged with the driving end of the driving rod (22) to drive the sampling clamping portion (38) to open and close.

2. The sampling forceps with a lever structure according to claim 1, characterized in that: The rear ends of the first clamping member (33) and the second clamping member (34) form a driven portion (39) to slide with the driving end of the driving rod (22) to drive the sampling clamping portion (38) to open and close.

3. The sampling forceps with a lever structure according to claim 1, characterized in that: The first clamping member (33) and the second clamping member (34) are rotatably connected via a connecting shaft (37); The connecting shaft (37) passes through the connection between the first clamping member (33) and the second clamping member (34) near the sampling clamping portion (38), so that when the driving end of the driving rod (22) slides at the driven portion (39), the first clamping member (33) and the second clamping member (34) are driven to rotate around the connecting shaft (37).

4. The sampling forceps with a lever structure according to claim 2, characterized in that: The distance between the end of the driven portion (39) and the connecting shaft (37) is greater than the distance between the end of the sampling clamping portion (38) and the connecting shaft (37); The driven portion (39) is provided with a connecting groove (35) for slidingly engaging with the driving end portion of the driving rod (22) so that the driven portion (39) maintains contact with the driving rod (22).

5. The sampling forceps with a lever structure according to claim 1, characterized in that: The sampling mechanism (3) further comprises a mounting frame (31) and a mounting rod (36), wherein the mounting frame (31) is provided with a guide groove (32); The mounting rod (36) passes through the driving rod (22), and the end of the mounting rod (36) is slidably fitted in the guide groove (32) to guide the driving rod (22).

6. The sampling forceps with a lever structure according to claim 5, characterized in that: The mounting rod (36) is fixedly connected to the middle portion of the driving end of the driving rod (22); Specifically, there are two guide grooves (32) for corresponding to the two ends of the mounting rod (36).

7. The sampling forceps with a lever structure according to claim 1, characterized in that: The sampling forceps further comprises a main body (1), the main body (1) comprising a guide tube (12) and a slide rod (11), and a hollow portion is provided in the middle of the slide rod (11); The driving rod (22) is arranged on the driving member (21) of the driving component (2), the driving member (21) is sleeved on the sliding rod (11), and the connecting plate in the middle of the driving member (21) is located in the hollow portion; One end of the driving rod (22) is located in the hollow portion, and the other end passes through the guide tube (12) and the mounting frame (31).

8. The sampling forceps with a lever structure according to claim 7, characterized in that: One end of the driving rod (22) is arranged on the driving member (21), and the other end is connected to the mounting rod (36); The driving member (21) is suitable for controlling the rotation of the first clamping member (33) and the second clamping member (34) through the driving rod (22).

9. A sampling forceps with a lever structure, characterized in that: include: A main body (1), which includes a slide bar (11); A driving component (2) is mounted on a side of the slide rod (11), and the driving component (2) includes a driving rod (22); The sampling mechanism (3) is located at the driving end of the driving rod (22), and includes a first clamping member (33) and a second clamping member (34) that are arranged to open and close; wherein The front ends of the first clamping member (33) and the second clamping member (34) are opened and closed to form a sampling clamping portion (38), and the rear ends thereof are slidably engaged with the driving end of the driving rod (22) to drive the sampling clamping portion (38) to open and close.

10. The sampling forceps with a lever structure according to claim 9, characterized in that: The rear ends of the first clamping member (33) and the second clamping member (34) form a driven portion (39) to slide with the driving end of the driving rod (22) to drive the sampling clamping portion (38) to open and close; The sampling mechanism (3) further includes a connecting shaft (37); The first clamping member (33) and the second clamping member (34) are rotatably connected around a connecting shaft (37), and the connecting shaft (37) passes through the first clamping member (33) and the second clamping member (34) near the connection of the sampling clamping portion (38), so that when the driving end of the driving rod (22) slides at the driven portion (39), the first clamping member (33) and the second clamping member (34) are driven to rotate along the connecting shaft (37).

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