CN118161198A - A sampling device for orthopedic diagnosis - Google Patents

Abstract

The present invention provides a sampling device for orthopedic diagnosis, which belongs to the technical field of orthopedic diagnosis. The sampling device includes a sampler body, an outer tube is provided at the bottom of the sampler body, and a sampling assembly and an autonomous sampling mechanism are provided inside the sampler body; a support assembly is provided at the bottom of the outer tube, and the support assembly includes a mounting block located on the outer surface of the outer tube, fixed tubes are symmetrically provided on both sides of the mounting block, and a fixed suction cup is provided at the bottom of the fixed tube. In the above scheme, the sampling device is provided with a fixed suction cup, and the sampling device is fixed on the human body as a whole by adsorbing the fixed suction cup to the human skin, thereby avoiding shaking and dislocation; when the sampling assembly is inserted into the bone of the human body, the autonomous sampling mechanism generates a negative pressure in the inner cavity of the sampling assembly, thereby autonomously sucking the bone marrow inside the bone to achieve rapid sampling.

Description

A sampling device for orthopedic diagnosis

Technical Field

The present invention relates to the technical field of orthopedic diagnosis, and in particular to a sampling device for orthopedic diagnosis.

Background technique

An orthopedic sampler is a bone sampler, which is a medical surgical instrument used to extract bone marrow or bone tissue samples from the human body. The existing bone sampler inserts the outer needle tube and the inner needle tube at the bottom of the sampler into the human bone as a whole, and rotates back and forth to sample the bone marrow from the inner wall of the bone into the inner needle tube for subsequent diagnosis.

The invention patent with the publication number CN106388869B discloses an orthopedic sampler for medical examination, including a drill rod with a drill bit at one end, a handle connected to the drill rod, a tooth-shaped protrusion at the end of the drill bit, a bone extraction tube at the other end of the drill rod, the bone extraction tube is a tubular structure matching the drill bit, the inner wall of the bone extraction tube is annularly distributed with a plurality of barbs, the bottom of the barbs is connected to the through hole opened on the tube wall of the bone extraction tube, and the top of the barbs is inclined toward the inner cavity of the bone extraction tube; a polygonal cavity is arranged at the axial position of the drill rod, and the lower end of the handle is fixedly connected to a polygonal tube inserted in the polygonal cavity, and a push-pull rod is inserted in the polygonal tube. The bone sampler for medical examination has a simple structure and is easy to use. When sampling, the bone sample can be clamped, or the root of the bone sample can be cut into a ring groove to facilitate the extraction of the sample column and improve the success rate of sampling.

The invention patent with publication number CN105852914B discloses a medical orthopedic sampling trephine, comprising a drill rod with a drill bit at the lower end and a handle arranged at the upper end of the drill rod, the drill rod is a columnar structure, and the upper end of the drill rod is rotatably connected to the center of the handle; an outer sleeve is sleeved on the drill rod, and the outer wall of the drill rod and the inner wall of the outer sleeve are matched by axial sliding splines; the upper end of the outer sleeve is fixedly connected to a sleeve handle, and a clutch mechanism is arranged between the sleeve handle and the handle; the drill bit is composed of at least two arc-shaped sheets arranged in a ring, and the outer surface of the arc-shaped sheet is provided with an inclined surface that gradually shrinks inward from bottom to top. The medical orthopedic sampling trephine has a simple structure and is easy to use. It can clamp bone samples during sampling, thereby improving the success rate of sampling.

However, when inserting the bottom of the needle into the human body, medical personnel need to concentrate highly to insert it in the right position. Any hand tremors or obstructions from human cells during the process will cause slight deviations or even overall shifts, thus affecting the subsequent sampling results.

Summary of the invention

The technical problem to be solved by the present invention is to provide a sampling device for orthopedic diagnosis, so as to solve the problem that the existing orthopedic sampler is prone to deviation and dislocation during the process of inserting the needle tube into the human body, thereby affecting the subsequent sampling effect.

In order to solve the above technical problems, the present invention provides the following technical solutions:

A sampling device for orthopedic diagnosis comprises a sampler body, an outer tube is arranged at the bottom of the sampler body, a sampling assembly and an autonomous sampling mechanism are arranged inside the sampler body; a support assembly is arranged at the bottom end of the outer tube, the support assembly comprises a mounting block located on the outer surface of the outer tube, fixed tubes are symmetrically arranged on both sides of the mounting block, and a fixed suction cup is arranged at the bottom of the fixed tube.

Optionally, the sampling assembly includes a needle head, an inner needle tube and a piston needle; wherein, the needle head is movably mounted on the top of the sampler body, the inner needle tube is connected to the bottom end of the needle head and the inner needle tube passes through the outer tube, and the piston needle is movably mounted inside the inner needle tube.

Optionally, a negative pressure component is provided inside the fixed tube, and the negative pressure component includes a movable round block movably connected to the inner wall of the fixed tube, and the outer wall of the movable round block is adapted to the inner wall of the fixed tube; a push button is provided on the movable round block, and the fixed tube is provided with a slide groove adapted to the push button.

Optionally, the autonomous sampling mechanism includes a lifting assembly and a pushing assembly, the lifting assembly is connected to the piston needle, and the pushing assembly is used to push the lifting assembly to move upward; wherein, the lifting assembly includes a fixed rod, the top of the fixed rod is connected to the bottom surface of the top of the piston needle, the bottom of the fixed rod is provided with a rectangular block protruding outward, and the interior of the needle tube head is provided with a movable groove adapted to the fixed rod and the rectangular block, and the fixed rod and the rectangular block can move up and down along the inner wall of the movable groove.

Optionally, the pushing assembly includes a moving block and a button connected to the moving block; the moving block corresponds one-to-one to the fixed plug rod, the moving block is movably installed inside the sampler body, a transverse groove adapted to the moving block is provided inside the sampler body, the transverse groove is connected to the bottom of the movable groove, the button is located on the outside of the moving block and passes through the sampler body, a cylindrical groove is provided on the upper end surface of the moving block away from the button, and a power spring is arranged in the cylindrical groove.

Optionally, a partition assembly is also provided inside the fixed tube, and the partition assembly includes a fixed plate and a connecting baffle; the fixed plate is located on the side of the mounting block and is fixedly connected to the inner wall of the fixed tube, and a guide groove is provided at one end of the fixed plate facing the connecting baffle, one end of the connecting baffle is fixedly connected to the side of the movable round block, and the other end is slidably connected to the guide groove of the fixed plate.

Optionally, a linkage slider is provided on the fixed plate, the linkage slider corresponds to the moving block one-to-one, the linkage slider is movably connected to the inner wall of the fixed tube, a protrusion structure is provided on the top of the linkage slider, and a limiting groove matched with the protrusion structure is opened on the top of the fixed tube; a connecting plate is provided on the top of the protrusion structure, and the connecting plate is used to connect the corresponding linkage slider and moving block.

Compared with the prior art, the present invention has at least the following beneficial effects:

In the above scheme, the sampling device is provided with a fixed suction cup, and the sampling device is fixed on the human body as a whole by adsorbing the fixed suction cup tightly against the human skin, thereby avoiding shaking and dislocation; when the sampling component is inserted into the human bone, the autonomous sampling mechanism is used to generate negative pressure in the inner cavity of the sampling component, thereby autonomously sucking the bone marrow inside the bone to achieve rapid sampling.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

FIG1 is a schematic diagram of the structure of a sampling device for orthopedic diagnosis;

Fig. 2 is a cross-sectional view of a sampling device for orthopedic diagnosis;

FIG3 is a schematic diagram of a partial enlarged structure of point A in FIG2;

FIG4 is a schematic diagram of a partial enlarged structure of point B in FIG2;

FIG. 5 is a partial exploded view of a cross-section of the sampling device for orthopedic diagnosis.

[reference numerals]

1. Sampler body; 2. Outer tube; 3. Needle tube head; 4. Inner needle tube; 5. Piston needle; 6. Mounting block; 7. Fixed tube; 8. Fixed suction cup; 9. Moving round block; 10. Slide groove; 11. Push button; 12. Fixed plate; 13. Connecting baffle; 14. Fixed plug rod; 15. Movable groove; 16. Moving block; 17. Cylindrical groove; 18. Power spring; 19. Button; 20. Connecting plate; 21. Limiting groove; 22. Linkage slider; 23. Rectangular block.

As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the claims.

Detailed ways

The following is a detailed description of an orthopedic diagnostic sampling device and a method of using the same provided by the present invention in conjunction with the accompanying drawings and specific embodiments. It is also noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

As shown in Figures 1 to 5, an embodiment of the present invention provides a sampling device for orthopedic diagnosis, including a sampler body 1, an outer tube 2 is provided at the bottom of the sampler body 1, and a sampling assembly and an autonomous sampling mechanism are provided inside the sampler body 1. When in use, bone sampling is performed by inserting the bottom of the sampling assembly into the inside of the bone; a support assembly is provided at the bottom end of the outer tube 2, and the support assembly includes a mounting block 6 located on the outer surface of the outer tube 2, and fixed tubes 7 are symmetrically provided on both sides of the mounting block 6, and a fixed suction cup 8 is provided at the bottom of the fixed tube 7. The sampling device can be supported by fixing the bottom of the fixed suction cup 8 to the human skin by adsorption.

As shown in Figure 2, the sampling assembly includes a needle head 3, an inner needle tube 4 and a piston needle 5; wherein, the needle head 3 is movably installed on the top of the sampler body 1, the inner needle tube 4 is connected to the bottom end of the needle head 3 and the inner needle tube 4 passes through the outer tube 2, and the piston needle 5 is movably installed inside the inner needle tube 4. When in use, bone marrow sampling is performed by inserting the bottom end of the inner needle tube 4 and the piston needle 5 as a whole into the inner wall of the bone.

As shown in Figure 4, a negative pressure component is provided inside the fixed tube 7, and the negative pressure component includes a moving round block 9 movably connected to the inner wall of the fixed tube 7, and the outer wall of the moving round block 9 is adapted to the inner wall of the fixed tube 7; a push button 11 is provided on the moving round block 9, and the fixed tube 7 is provided with a slide groove 10 adapted to the push button 11. Under the limitation of the slide groove 10, it can be ensured that the moving round block 9 is always located on the outside of the fixed suction cup 8. By pushing the push button 11, the moving round block 9 can be driven to move outward, so that negative pressure is generated between the bottom inner cavity of the fixed tube 7 and the inner cavity of the fixed suction cup 8, so that the fixed suction cup 8 is adsorbed and fixed to the human skin.

The autonomous sampling mechanism includes a lifting component and a pushing component. The lifting component is connected to the piston needle 5, and the pushing component is used to push the lifting component to move upward. As shown in Figures 3 and 5, the lifting component includes a fixed plug rod 14, the top of which is connected to the bottom surface of the top of the piston needle 5. There are two fixed plug rods 14, which are symmetrically arranged relative to the piston needle 5. The bottom of the fixed plug rod 14 is provided with a rectangular block 23 protruding outward, and the inside of the needle head 3 is provided with a movable groove 15 adapted to the fixed plug rod 14 and the rectangular block 23. The fixed plug rod 14 and the rectangular block 23 can move up and down along the inner wall of the movable groove 15, and the movable groove 15 can limit the fixed plug rod 14 and the rectangular block 23.

As shown in Fig. 1, Fig. 2 and Fig. 5, the pushing assembly includes a moving block 16 and a button 19 connected to the moving block 16; the moving block 16 corresponds to the fixed plug rod 14 one by one, the moving block 16 is movably installed inside the sampler body 1, a transverse groove adapted to the moving block 16 is provided inside the sampler body 1, the transverse groove is connected to the bottom of the movable groove 15, the button 19 is located outside the moving block 16 and penetrates the sampler body 1, and a cylindrical groove 17 is provided on the upper end surface of the end of the moving block 16 away from the button 19, and a power spring 18 is arranged in the cylindrical groove 17. By pushing the button 19, the moving block 16 can be driven to move inside the sampler body 1, so that the top of the power spring 18 contacts the rectangular block 23, and then the rectangular block 23 is pushed to drive the fixed plug rod 14 and the piston needle 5 to rise as a whole, so that the bottom of the piston needle 5 and the inner cavity of the inner needle tube 4 generate negative pressure to absorb bone marrow for sampling.

As shown in Figure 2, a partition assembly is also provided inside the fixed tube 7, and the partition assembly includes a horizontally arranged fixed plate 12 and a connecting baffle 13; the fixed plate 12 is located on the side of the mounting block 6, and is fixedly connected to the inner wall of the fixed tube 7, and a guide groove is provided at one end of the fixed plate 12 facing the connecting baffle 13, one end of the connecting baffle 13 is fixedly connected to the side of the movable round block 9, and the other end is slidably connected to the guide groove of the fixed plate 12, and the inner cavity of the fixed tube 7 can be divided into two by the fixed plate 12 and the connecting baffle 13.

As shown in Fig. 4 and Fig. 5, a linkage slider 22 is provided on the fixed plate 12, and the linkage slider 22 corresponds to the moving block 16 one by one, and the linkage slider 22 is movably connected to the inner wall of the fixed tube 7, and a protruding structure is provided on the top of the linkage slider 22, and a limiting groove 21 adapted to the protruding structure is provided on the top of the fixed tube 7, and the limiting groove 21 can play a good limiting role in the left and right movement of the linkage slider 22. A connecting plate 20 is provided on the top of the protruding structure, and the connecting plate 20 is used to connect the corresponding linkage slider 22 and the moving block 16. Under the action of the connecting plate 20, when the two moving blocks 16 move toward each other, they can drive the linkage slider 22 to move synchronously, and then through the change of air pressure, the two moving round blocks 9 can be synchronously driven to move toward each other, so as to push the gas in the inner cavity at the bottom of the fixed tube 7 and the inner cavity of the fixed suction cup 8 to be released outward, thereby releasing the adsorption of the fixed suction cup 8 on the human skin.

The use process of the sampling device for orthopedic diagnosis provided by the embodiment of the present invention is as follows:

First, the bottom of the outer tube corresponds to the bone sampling position, the two fixed suction cups 8 are in contact with the human skin, and then the two push buttons 11 are pushed to move the two push buttons 11 away from each other, so as to adsorb and fix the fixed suction cups 8 on the human skin;

Insert the bottom end of the inner needle tube 4 and the piston needle 5 into the bone, push the two buttons 19 to move the two buttons 19 toward each other, and under the elastic force of the power spring 18, the piston needle moves upward to take samples;

When the two buttons 19 move toward each other, the two moving blocks 16 drive the two linked sliders 22 to move toward each other, thereby releasing the adsorption of the fixed suction cup 8 on the human skin, removing the sampling device from the human body, and then removing the sampling assembly from the inside of the sampler body 1, and finally taking out the bone marrow sample in the inner cavity of the inner needle tube 4.

The technical solution provided by the present invention is to bring the fixed suction cup into contact with human skin, and then push the push button to generate negative pressure between the bottom inner cavity of the fixed tube and the inner cavity of the fixed suction cup, so that the fixed suction cup is tightly fixed to the human skin, thereby fixing the sampling device as a whole at the sampling position, thereby avoiding shaking and dislocation;

The needle head, inner needle tube and piston needle are inserted vertically downward along the inner wall of the sampler body and the outer tube into the human bone. Then, by pushing two buttons, the moving blocks are driven to move toward each other, so that the top of the power spring contacts the rectangular block. Under the elastic force of the power spring, the rectangular block, the fixed insertion rod and the piston needle move upward as a whole, so that the inner cavity of the inner needle tube at the bottom of the piston needle generates negative pressure to absorb the bone marrow, thereby autonomously absorbing the bone marrow inside the bone, and realizing rapid sampling.

When the two buttons move toward each other, the two moving blocks drive the two linked sliders to move toward each other. Then, through the change of air pressure, the two moving round blocks can be synchronously driven to move toward each other, so as to push the gas in the inner cavity at the bottom of the fixed tube and the inner cavity of the fixed suction cup to be discharged outward, thereby releasing the adsorption of the fixed suction cup on the human skin.

The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims (8)

1. A sampling device for orthopedic diagnosis, characterized in that it includes a sampler body, an outer tube is provided at the bottom of the sampler body, and a sampling assembly and an autonomous sampling mechanism are provided inside the sampler body; a support assembly is provided at the bottom end of the outer tube, and the support assembly includes a mounting block located on the outer surface of the outer tube, fixed tubes are symmetrically provided on both sides of the mounting block, and a fixed suction cup is provided at the bottom of the fixed tube. 2. The sampling device for orthopedic diagnosis according to claim 1, characterized in that the sampling assembly comprises a needle head, an inner needle tube and a piston needle; The needle tube head is movably mounted on the top of the sampler body, the inner needle tube is connected to the bottom end of the needle tube head and passes through the outer tube, and the piston needle is movably mounted inside the inner needle tube. 3. The sampling device for orthopedic diagnosis according to claim 1 is characterized in that a negative pressure component is arranged inside the fixed tube, and the negative pressure component includes a movable round block movably connected to the inner wall of the fixed tube, and the outer wall of the movable round block is adapted to the inner wall of the fixed tube; a push button is arranged on the movable round block, and the fixed tube is provided with a slide groove adapted to the push button. 4. The sampling device for orthopedic diagnosis according to claim 2, characterized in that the autonomous sampling mechanism comprises a lifting component and a pushing component, the lifting component is connected to the piston needle, and the pushing component is used to push the lifting component to move upward; Among them, the lifting assembly includes a fixed rod, the top of the fixed rod is connected to the bottom surface of the top of the piston needle, the bottom of the fixed rod is provided with a rectangular block protruding outward, and the interior of the needle tube head is provided with a movable groove adapted to the fixed rod and the rectangular block, and the fixed rod and the rectangular block can move up and down along the inner wall of the movable groove. 5. The sampling device for orthopedic diagnosis according to claim 4, characterized in that the pushing assembly comprises a moving block and a button connected to the moving block; The moving block corresponds to the fixed plug rod one by one, and the moving block is movably installed inside the sampler body. A transverse groove adapted to the moving block is provided inside the sampler body, and the transverse groove is connected with the bottom of the movable groove. The button is located on the outside of the moving block and passes through the sampler body. A cylindrical groove is provided on the upper end surface of the moving block away from the button, and a power spring is arranged in the cylindrical groove. 6 . The sampling device for orthopedic diagnosis according to claim 5 , characterized in that a partition assembly is provided inside the fixing tube, and the partition assembly comprises a fixing plate and a connecting baffle. 7. The sampling device for orthopedic diagnosis according to claim 6 is characterized in that the fixed plate is located on the side of the mounting block and is fixedly connected to the inner wall of the fixed tube, a guide groove is provided at one end of the fixed plate facing the connecting baffle, one end of the connecting baffle is fixedly connected to the side of the movable round block, and the other end is slidably connected to the guide groove of the fixed plate. 8. The sampling device for orthopedic diagnosis according to claim 6 is characterized in that a linkage slider is provided on the fixed plate, the linkage slider corresponds to the moving block one-to-one, the linkage slider is movably connected to the inner wall of the fixed tube, a protrusion structure is provided on the top of the linkage slider, and a limiting groove matched with the protrusion structure is opened on the top of the fixed tube; a connecting plate is provided on the top of the protrusion structure, and the connecting plate is used to connect the corresponding linkage slider and moving block.