Swinging cutting sampling device

Abstract

The present invention relates to the technical field of sampling devices, and in particular to a swing-type cutting sampling device, comprising a mounting seat, a first rocker, a second rocker, a sampling spoon, a transmission member for connecting to a driving mechanism, and a transmission tube for connecting to a negative pressure source. The first rocker is rotatably arranged on the mounting seat, one end of the first rocker is hinged to the transmission member, and the other end is hinged to one side of the sampling spoon. One end of the second rocker is rotatably arranged on the mounting seat, and the other end is hinged to the other side of the sampling spoon. When the transmission member is driven, the sampling spoon can make a swinging and cutting action, so as to quickly cut tissue samples and prevent the tissue from being torn. After the sampling spoon swings and cuts the tissue sample, it can be covered on the head end of the transmission tube, and the transmission tube is connected to the negative pressure source, so that the tissue sample is taken out through the transmission tube, and repeated continuous sampling is realized, which greatly improves the convenience of tissue sampling and reduces the operation time.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a swing-type cutting sampling device. Background Art

[0002] Sampling forceps are special instruments used to collect living tissue samples from the upper digestive tract, lower digestive tract, respiratory tract, urinary system and female reproductive system for pathological analysis. The structure of existing living tissue sampling forceps is mainly a pair of forceps heads that can bite each other. When in use, they are inserted into the body through the endoscope forceps channel to clamp the diseased tissue. However, this type of sampling forceps mainly adopts the biting and tearing method to take samples, which can easily tear the tissue. After each time the tissue is clamped, the sampling forceps must be taken out together with the sampled tissue before sampling can be performed again, which makes sampling inconvenient and the operation difficult. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problem that the sampling in the prior art is carried out by biting and tearing, which easily causes tissue tearing, and each time after the tissue is clamped, the sampling forceps must be connected to the sampled tissue and taken out together before sampling again, resulting in inconvenient sampling and great surgical difficulty, a swinging cutting sampling device is now provided.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a swing-type cutting sampling device, comprising a mounting seat, a first rocker, a second rocker, a sampling spoon, a transmission member for connecting to a driving mechanism and a transmission tube for connecting to a negative pressure source, wherein the first rocker is rotatably arranged on the mounting seat, one end of the first rocker is hinged to the transmission member, and the other end is hinged to one side of the sampling spoon, one end of the second rocker is rotatably arranged on the mounting seat, and the other end is hinged to the other side of the sampling spoon, and the transmission member can make the sampling spoon approach or move away from the head end of the transmission tube under the drive of the driving mechanism.

[0005] The present invention cleverly utilizes a double rocker mechanism formed between the first rocker, the second rocker and the sampling spoon, so that when the transmission member is driven, the sampling spoon can make a swinging and cutting motion, thereby quickly cutting the tissue sample and preventing the tissue from being torn. After the sampling spoon swings and cuts the tissue sample, it can be covered on the head end of the transmission tube, and the transmission tube is connected by a negative pressure source, so that the tissue sample can be taken out through the transmission tube, realizing repeated continuous sampling, greatly improving the convenience of tissue sampling and reducing the operation time.

[0006] Furthermore, the first rocker is L-shaped, and a corner of the first rocker is rotatably connected to the mounting seat.

[0007] Furthermore, the hinge point between the mounting seat and the first rocker is located below the hinge point between the mounting seat and the second rocker.

[0008] Furthermore, the end of the first rocker arm relatively away from the sampling spoon and the transmission member are both arranged on the limiting shaft, the mounting seat is provided with an arc groove, and the limiting shaft is inserted in the arc groove.

[0009] Furthermore, the sampling spoon has a sampling cavity with an opening at one end, and the sampling spoon has a cutting edge on the opening edge of the sampling cavity.

[0010] The beneficial effects of the present invention are as follows: the swing-type cutting sampling device of the present invention cleverly utilizes a double rocker mechanism formed between the first rocker, the second rocker and the sampling spoon, so that when the transmission member is driven, the sampling spoon can make a swinging and cutting action, thereby quickly cutting the tissue sample and preventing the tissue from being torn. After the sampling spoon swings and cuts the tissue sample, it can be covered on the head end of the transmission tube, and the transmission tube is connected by a negative pressure source, so that the tissue sample is taken out through the transmission tube, realizing repeated continuous sampling, greatly improving the convenience of tissue sampling and reducing the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 is a schematic diagram of the swing-type cutting sampling device of the present invention during swing cutting;

[0013] Figure 2 It is a three-dimensional schematic diagram of one side of the swing-type cutting sampling device of the present invention;

[0014] Figure 3 It is a three-dimensional schematic diagram of the other side of the swing-type cutting sampling device of the present invention.

[0015] In the figure: 1. mounting seat, 1-1. arc groove, 2. first rocker, 3. second rocker, 4. sampling spoon, 4-1. sampling cavity, 4-2. cutting blade, 5. transmission member, 6. transmission tube, 7. limiting shaft. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0017] Example 1

[0018] like Figure 1-3As shown, a swing-type cutting sampling device comprises a mounting seat 1, a first rocker arm 2, a second rocker arm 3, a sampling spoon 4, a transmission member 5 for connecting to a driving mechanism, and a transmission tube 6 for connecting to a negative pressure source. The first rocker arm 2 is rotatably arranged on the mounting seat 1, one end of the first rocker arm 2 is hinged to the transmission member 5, and the other end is hinged to one side of the sampling spoon 4, one end of the second rocker arm 3 is rotatably arranged on the mounting seat 1, and the other end is hinged to the other side of the sampling spoon 4, that is, the first rocker arm 2 and the second rocker arm 3 are respectively located on both sides of the sampling spoon 4, and the transmission member 5 can make the sampling spoon 4 approach or move away from the head end of the transmission tube 6 under the drive of the driving mechanism.

[0019] The first rocker arm 2 is L-shaped, and a corner of the L-shaped first rocker arm 2 is rotatably connected to the mounting seat 1; specifically, the mounting seat 1 and the first rocker arm 2 are connected by a pin shaft.

[0020] From the perspective of the use state of the cutting sampling device of the present invention, the hinge point between the mounting seat 1 and the first rocker 2 is located below the hinge point between the mounting seat 1 and the second rocker 3 .

[0021] The end of the first rocker arm 2 relatively away from the sampling spoon 4 and the transmission member 5 can be rotatably arranged on the limit shaft 7, and the mounting seat 1 is provided with an arc groove 1-1, and the limit shaft 7 is inserted in the arc groove 1-1; in this embodiment, the limit shaft 7 is used to make the first rocker arm 2 only rotate along the arc groove 1-1, so as to limit the rotation angle range of the first rocker arm 2, specifically: when the first rocker arm 2 is rotated to the limit shaft 7 and the lower end of the arc groove 1-1 is in contact, it is the lower limit of rotation, at this time, the sampling spoon 4 is in contact with the head end of the transmission tube 6, and it is the position where sampling ends; when the first rocker arm 2 is rotated to the limit shaft 7 and the upper end of the arc groove 1-1 is in contact, it is the upper limit of rotation, at this time, the sampling spoon 4 is away from the head end of the transmission tube 6, and it is the position where sampling starts.

[0022] The sampling spoon 4 has a sampling cavity 4 - 1 with one end open, and the sampling spoon 4 has a cutting edge 4 - 2 located at the opening edge of the sampling cavity 4 - 1 .

[0023] In this embodiment, the driving mechanism adopts an endoscope assembly, specifically, the driving wire of the endoscope assembly is connected to the transmission member 5, so that the driving wire is manipulated to pull or push the transmission member 5. A spring can also be set on the transmission member 5. When the driving wire pulls the transmission member 5, the spring is compressed and stores energy. After the driving wire is released, the transmission member 5 will be reset under the action of the spring.

[0024] In this embodiment, the negative pressure source can specifically be a central negative pressure device of a hospital, or an electric medical suction machine, so as to evacuate the transmission tube 6 to form a negative pressure in the transmission tube 6.

[0025] The working principle of this embodiment is as follows:

[0026] By operating the driving wire of the endoscope assembly to pull the transmission member 5, the first rocker 2 is rotated downward around the hinge point at the corner thereof to drive the sampling spoon 4 to rotate downward. At the same time, the second rocker 3 is also rotated downward to drive the sampling spoon 4 to rotate downward, thereby forming a downward swing of the sampling spoon 4 to move closer to the head end of the transmission tube 6, so as to quickly cut the tissue sample and prevent the tissue from being torn. After the sampling spoon 4 swings and cuts the tissue sample, it can be covered at the head end of the transmission tube 6, and the transmission tube 6 is connected by the negative pressure source, so that the tissue sample is taken out through the transmission tube 6;

[0027] Then, the driving wire of the endoscope assembly is manipulated to push the transmission member 5, and the transmission member 5 will be reset under the action of the spring and away from the head end of the transmission tube 6, waiting for the next tissue sampling, thereby achieving repeated continuous sampling, greatly improving the convenience of tissue sampling and reducing the operation time;

[0028] Among them, the double rocker mechanism composed of the first rocker 2, the second rocker 3 and the sampling spoon 4 can reduce the rotation amplitude and rotation radius of the sampling spoon 4 during the swinging and cutting tissue process, so that the first rocker 2 can enable the sampling spoon 4 to complete the swinging and cutting action with a smaller rotation amplitude, and when the sampling spoon 4 is attached to the head end of the transmission tube 6, the distance between the outermost part of the sampling spoon 4 and the hinge point at the corner of the first rocker 2 is shortened, thereby reducing the overall width.

[0029] The above-mentioned ideal embodiments of the present invention are for inspiration. Through the above-mentioned description, relevant staff can make various changes and modifications without departing from the technical idea of ​​the present invention. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A swing-type cutting sampling device, characterized in that: The invention comprises a mounting seat (1), a first rocking arm (2), a second rocking arm (3), a sampling spoon (4), a transmission member (5) for connecting to a driving mechanism, and a transmission tube (6) for connecting to a negative pressure source, wherein the first rocking arm (2) is rotatably mounted on the mounting seat (1), one end of the first rocking arm (2) is hinged to the transmission member (5), and the other end is hinged to one side of the sampling spoon (4), one end of the second rocking arm (3) is rotatably mounted on the mounting seat (1), and the other end is hinged to the other side of the sampling spoon (4), and the transmission member (5) can move the sampling spoon (4) closer to or farther away from the head end of the transmission tube (6) under the drive of the driving mechanism; The first rocker (2) is L-shaped, and a corner of the first rocker (2) is rotatably connected to the mounting seat (1); The sampling spoon (4) has a sampling cavity (4-1) with an opening at one end, and the sampling spoon (4) has a cutting edge (4-2) located at the opening edge of the sampling cavity (4-1).

2. The swing-type cutting sampling device according to claim 1, characterized in that: The hinge point between the mounting seat (1) and the first rocker (2) is located below the hinge point between the mounting seat (1) and the second rocker (3).

3. The swing-type cutting sampling device according to claim 1, characterized in that: The end of the first rocker (2) relatively away from the sampling spoon (4) and the transmission member (5) are both arranged on a limit shaft (7), an arc-shaped groove (1-1) is provided on the mounting seat (1), and the limit shaft (7) is inserted into the arc-shaped groove (1-1).

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