Pathological specimen collector

Abstract

A vacuum part comprises a needle cylinder and a piston part, the piston part is movably installed in an opening, the piston part comprises a piston and a rod body which are connected with each other, the piston and the inner wall of the needle cylinder are sealed, the rod body comprises four plate bodies which are evenly and circumferentially arranged, and the cross section of the rod body is in a cross shape; the outer end of one plate body is provided with a first comb tooth structure arranged in the length direction of the plate body. The clamping piece is arranged opposite to the first comb tooth structure; according to the pathological specimen collector provided by the utility model, after the piston part is drawn out and negative pressure is formed in the needle cylinder, through the combination of the clamping piece and the first comb tooth structure, after a user releases the piston part, the clamping piece can limit the piston part from falling back, so that the negative pressure in the needle cylinder is further maintained, and a second hard tube or a needle head is held by hand to complete a puncture action; and finally, the liquid pumping process is completed by kneading the ball part on the hose on the switch part. By means of the structural design, the use effects that single-person adjustment is achieved, and the liquid taking strength is convenient and fast to adjust are achieved.

Description

Technical Field

[0001] The utility model relates to the field of pathological specimen collection devices, in particular to a pathological specimen collector. Background Art

[0002] Pathological specimen collectors, as important tools in modern biomedical research, play an indispensable role in disease diagnosis, drug development, and exploration of physiological mechanisms.

[0003] The types of pathological specimen collection mainly include liquid tissue fluid and solid tissue. For liquid tissue fluid, the new generation of pathological specimen collectors use advanced sensing technology and microfluidics technology to achieve precise control and stable collection of tissue fluid. In the application process of pathological specimen collectors, researchers can analyze the collected tissue fluid to understand the metabolism of various substances in the body and reveal the pathogenesis and pathological process of the disease. At the same time, this instrument can also be used for drug screening and evaluation, helping researchers discover new treatments and drug targets.

[0004] Although automated liquid collection devices have a relatively deep research and use foundation, manual sampling devices are still widely used in many scenarios. During the use of manual pathology specimen collectors, it is difficult for a single operator to operate the needle part and the vacuum part at the same time, and in the specific process of liquid collection, the intensity (speed) of liquid collection is also difficult to control. Utility Model Content

[0005] The main purpose of the utility model is to provide a pathological specimen collector, which aims to solve the problem that during the use of a manual pathological specimen collector, a single operator is difficult to operate the needle part and the vacuum part at the same time, and in the specific process of liquid collection, the intensity of liquid collection is also difficult to control.

[0006] In order to achieve the above object, the utility model provides a pathological specimen collector, comprising:

[0007] The vacuum part comprises a syringe and a piston part, wherein the two ends of the syringe in the length direction are an opening and an interface nozzle respectively, and the piston part is movably installed in the opening, and the piston part comprises a piston and a rod body connected to each other, and the piston forms a seal with the inner wall of the syringe, and the rod body comprises four plates evenly arranged around so that the cross section of the rod body is cross-shaped, and the outer end of one of the plates is provided with a first comb tooth structure arranged along its length direction;

[0008] A first hard tube, one end of which in the length direction is connected to the interface nozzle;

[0009] The switch part includes a hose and a ball, one end of the hose in the length direction is wrapped and connected to the other end of the first hard tube in the length direction, and the ball is elastically fixed inside the hose;

[0010] A second hard tube, one end of which in the length direction is wrapped and connected by the other end of the hose in the length direction;

[0011] a needle connected to one end of the second rigid tube in the length direction;

[0012] A fixing sheet, arranged on the first comb tooth structure;

[0013] Wherein, when the fixing sheet is combined with the first comb tooth structure, the fixing sheet is fixed to the opening.

[0014] Furthermore, a second comb tooth structure is provided at an outer end of the plate body opposite to the first comb tooth structure, and the second comb tooth structure is staggered with respect to the first comb tooth structure.

[0015] Furthermore, a scale is provided on the length direction of the outer wall of the syringe.

[0016] Furthermore, a hand-held piece is provided on the outer periphery of the opening, and the fixing piece is integrally formed with the hand-held piece, wherein the syringe is made of plastic.

[0017] Furthermore, fixing rings are respectively provided at both ends of the hose in the length direction.

[0018] Furthermore, the pathological specimen collector also includes a clamping card, and the clamping card is arranged corresponding to the hose.

[0019] Furthermore, the distance between the other end of the second rigid tube in the length direction and the sphere is less than 3 centimeters.

[0020] Furthermore, the first rigid tube is a curved tube, the second rigid tube is a straight tube, and the length of the flexible tube is greater than 10 cm.

[0021] Furthermore, the first hard tube, the second hard tube, the vacuum portion and the fixing sheet are made of plastic.

[0022] Furthermore, the hose is made of silicone.

[0023] The pathological specimen collector provided by the utility model has a piston part that is pulled out and forms a negative pressure in the syringe. Through the combination of the clamping piece and the first comb tooth structure, after the user releases the piston part, the clamping piece can limit the piston part from falling back, thereby maintaining the negative pressure in the syringe, and there is no need to operate the vacuum part. After maintaining the appropriate negative pressure, the second hard tube or needle is held to complete the puncture action, and finally the liquid extraction process is completed by pinching the spherical part on the hose on the switch part. The above structural design realizes the use effect of single-person adjustment and convenient and adjustable liquid extraction intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the pathological specimen collector of the first embodiment of the utility model (the piston part is not pulled out);

[0025] Figure 2 It is a cross-sectional schematic diagram of the pathological specimen collector of the first embodiment of the utility model (the piston part is not pulled out);

[0026] Figure 3 It is a schematic diagram of the piston part of the pathological specimen collector of the first embodiment of the utility model;

[0027] Figure 4 It is a schematic diagram of the pathological specimen collector of the first embodiment of the utility model (with the piston part pulled out);

[0028] Figure 5 It is a schematic diagram of the pathological specimen collector of the first embodiment of the utility model (the piston part is pulled out and the fixing piece is in a fixed state).

[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Those skilled in the art will appreciate that, unless expressly stated, the singular forms "one", "said", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0032] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as the general understanding of ordinary technicians in the field to which the utility model belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0033] Reference Figures 1 to 5 In one embodiment of the utility model, a pathological specimen collector comprises:

[0034] The vacuum part 100 includes a syringe 110 and a piston part 120. The two ends of the syringe 110 in the length direction are an opening and an interface nozzle 111 respectively. The piston part 120 is movably installed in the opening. The piston part 120 includes a piston 121 and a rod body 122 connected to each other. The piston 121 forms a seal with the inner wall of the syringe 110. The rod body 122 includes four plates 123 evenly arranged around the rod body 122 so that the cross section of the rod body 122 is cross-shaped. The outer end of one of the plates 123 is provided with a first comb structure 124 arranged along its length direction.

[0035] A first hard tube 200, one end of which in the length direction is connected to the interface nozzle 111;

[0036] The switch part 300 includes a hose 310 and a sphere 320. One end of the hose 310 in the length direction is wrapped and connected to the other end of the first hard tube 200 in the length direction. The sphere 320 is elastically fixed inside the hose 310.

[0037] The second hard tube 400 has one end in the length direction wrapped and connected to the other end in the length direction of the soft tube 310;

[0038] A needle 500 connected to one end of the second hard tube 400 in the length direction;

[0039] A fixing sheet 600, provided for the first comb tooth structure 124;

[0040] When the fixing piece 600 is combined with the first comb-tooth structure 124 , the fixing piece 600 is fixed to the opening.

[0041] In the existing technology, pathological specimen collectors, as important tools in modern biomedical research, play an indispensable role in disease diagnosis, drug development, and physiological mechanism exploration.

[0042] The types of pathological specimen collection mainly include liquid tissue fluid and solid tissue. For liquid tissue fluid, the new generation of pathological specimen collectors use advanced sensing technology and microfluidics technology to achieve precise control and stable collection of tissue fluid. In the application process of pathological specimen collectors, researchers can analyze the collected tissue fluid to understand the metabolism of various substances in the body and reveal the pathogenesis and pathological process of the disease. At the same time, this instrument can also be used for drug screening and evaluation, helping researchers discover new treatments and drug targets.

[0043] Although automated liquid collection devices have a relatively deep research and use foundation, manual sampling devices are still widely used in many scenarios. During the use of manual pathology specimen collectors, it is difficult for a single operator to operate the needle part and the vacuum part at the same time, and in the specific process of liquid collection, the intensity (speed) of liquid collection is also difficult to control.

[0044] In the utility model, the vacuum part 100 includes a syringe 110 and a piston part 120. The two ends of the syringe 110 in the length direction are an opening and an interface nozzle 111 respectively. The piston part 120 is movably installed in the opening. The piston part 120 includes a piston 121 and a rod body 122 connected to each other. The piston 121 forms a seal with the inner wall of the syringe 110. The rod body 122 includes four plates 123 evenly arranged around so that the cross section of the rod body 122 is cross-shaped. The outer end of a plate body 123 is provided with a first comb tooth structure 124 arranged along its length direction.

[0045] One end of the first hard tube 200 in the length direction is connected to the interface nozzle 111. The first hard tube 200 increases the size of the pathological specimen collector and increases its flexibility of use. At the same time, the length of the subsequent hose 310 can be shortened to ensure the use effect of the switch part 300.

[0046] The switch unit 300 includes a hose 310 and a sphere 320. One end of the hose 310 in the length direction is wrapped and connected to the other end of the first hard tube 200 in the length direction. The length of the hose 310 should not be too long, otherwise it is easy to cause abnormal closure due to the effect of negative pressure. The sphere 320 is elastically fixed inside the hose 310. When the switch unit 300 is not operated, the sphere 320 cuts off the conduction of the hose 310. At this time, negative pressure can be formed in the syringe 110 by operating the piston unit 120.

[0047] One end of the second hard tube 400 in the length direction is wrapped and connected by the other end of the hose 310 in the length direction. Specifically, the connection between the hose 310 and the first hard tube 200 and the second hard tube 400 can be achieved by elastic deformation, or other auxiliary fixing structures can be added.

[0048] The needle 500 is connected to one end of the second hard tube 400 in the length direction. The needle 500 is used to complete the puncture sampling action, specifically punctures the relevant position. The second hard tube 400 is connected to the needle 500. Since the size of the needle 500 is generally small, the size of the second hard tube 400 can be increased adaptably, thereby facilitating the user's handheld operation.

[0049] The clamping piece 600 is arranged on the first comb tooth structure 124. When the piston part 120 is partially pulled out relative to the syringe 110, negative pressure can be formed in the syringe 110. At this time, the clamping piece 600 is combined with the first comb tooth structure 124 at the opening position. At this time, the clamping piece 600 is clamped to the opening, and then after the user releases the piston part 120, the clamping piece 600 can limit the piston part 120 from falling back, thereby maintaining the negative pressure in the syringe 110.

[0050] During use: after the pathological specimen collector is assembled as a whole; the piston part 120 is partially pulled out relative to the syringe 110, and then the fixing piece 600 is combined with the first comb tooth structure 124 at the opening position, and the fixing piece 600 is fixed to the opening; the second hard tube 400 or the needle 500 is held to complete the puncture action (in this process, imaging equipment such as B-ultrasound can be assisted); finally, by pinching the ball 320 on the hose 310 on the switch part 300 (the size of the pinching force can also adjust the degree of conduction), the state of the switch part 300 is adjusted to conduction, and at this time, the negative pressure of the vacuum part 100 is conducted to the needle 500 part, and the liquid extraction process can be carried out.

[0051] In summary, after the piston part 120 is pulled out and negative pressure is formed in the syringe 110, through the combination of the fixing piece 600 and the first comb tooth structure 124, after the user releases the piston part 120, the fixing piece 600 can limit the fall of the piston part 120, thereby maintaining the negative pressure in the syringe 110, and there is no need to operate the vacuum part 100; after maintaining the appropriate negative pressure, the second hard tube 400 or the needle 500 is held to complete the puncture action, and finally the liquid extraction process is completed by pinching the ball 320 on the hose 310 on the switch part 300; the above structural design realizes the use effect of single-person adjustment and convenient and adjustable liquid extraction intensity.

[0052] Reference Figures 1 to 5 In one embodiment, a second comb tooth structure 125 is provided at the outer end of the plate body 123 opposite to the first comb tooth structure 124 , and the second comb tooth structure 125 is staggered with the first comb tooth structure 124 .

[0053] In this embodiment, considering that the intervals between the teeth of the first comb tooth structure 124 are small, although more freedom of capacity selection can be provided, the structural strength of the first comb tooth structure 124 will also be reduced. By setting the second comb tooth structure 125 at the outer end of the plate body 123 opposite to the first comb tooth structure 124, and the second comb tooth structure 125 and the first comb tooth structure 124 are staggered, while ensuring the structural strength of the first comb tooth structure 124 and the second comb tooth structure 125, more freedom of capacity selection can still be provided. It should be noted that the above arrangement also ensures the overall structural strength of the piston part 120.

[0054] In one embodiment, a scale is provided on the length direction of the outer wall of the syringe 110 .

[0055] In this embodiment, the scale can provide the user with numerical guidance. The scale can be integrally formed with the syringe 110 or printed in a subsequent process.

[0056] Reference Figures 1 to 5 In one embodiment, a hand-held piece 112 is disposed on the periphery of the opening, and the fixing piece 600 is integrally formed with the hand-held piece 112, wherein the syringe 110 is made of plastic.

[0057] In this embodiment, considering that the structure of the vacuum part 100 imitates a syringe, a hand-held sheet 112 is held at the periphery of the opening, so that during the operation, the hand-held sheet 112 can be used as a basis to facilitate the operation and exertion of force. At the same time, the clamping sheet 600 is integrally formed with the hand-held sheet 112. During the processing, the clamping sheet 600 is connected to the hand-held sheet 112, and during the use, the clamping sheet 600 can be broken off. The material of the syringe 110 can be polypropylene, etc.

[0058] In one embodiment, fixing rings are respectively provided at two ends of the hose 310 in the length direction.

[0059] In this embodiment, considering that the material of the hose 310 is relatively soft and thus there are certain risks in the connection effect between the second rigid tube 400 and the first rigid tube 200, the hose 310 is fixed to the second rigid tube 400 and the first rigid tube 200 at both ends of the length direction of the hose 310 through a fixing ring, and the material of the fixing ring can be a steel structure, etc.

[0060] In one embodiment, the pathological specimen collector further includes a clamping card, and the clamping card is arranged corresponding to the hose 310 .

[0061] In this embodiment, considering that the sealing effect formed by the switch part 300 is sometimes insufficient to resist the negative pressure formed by the vacuum part 100, a clamping card is added to provide a partitioning effect. During use, the clamping card is clamped on the hose 310 to cut off the hose 310. At this time, the clamping card assists the ball 320 in the hose 310 to interrupt the conduction of the entire hose 310, so that a stable negative pressure state can be formed at the vacuum part 100.

[0062] In one embodiment, the distance between the other end of the second hard tube 400 in the length direction and the sphere 320 is less than 3 centimeters.

[0063] In this embodiment, during the operation, the user needs to hold the second hard tube 400 or the needle 500 to complete the operation of aligning and sampling, and during the sampling process, the sphere 320 needs to be operated. By shortening the distance between the needle 500 and the sphere 320, and limiting the distance between the other end of the second hard tube 400 in the length direction and the sphere 320 to less than 3 cm, the user can operate the second hard tube 400 and the sphere 320 at the same time.

[0064] In one embodiment, the first hard tube 200 is a curved tube, the second hard tube 400 is a straight tube, and the length of the soft tube 310 is greater than 10 cm.

[0065] In this embodiment, the first hard tube 200 and the second hard tube 400 are both hard tubes, and the bending requirement is met by the soft tube 310, which reduces the difficulty of processing and storage. In order for the soft tube 310 to achieve better bending characteristics, the length of the soft tube 310 is limited to more than 10 cm. It should be noted that the order of use of the first hard tube 200 and the second hard tube 400 does not form a restriction. According to the specific use scenario, the order between the first hard tube 200 and the second hard tube 400 can be exchanged at the site of use. According to the convenience of the use position of the pathological specimen collector, the first hard tube 200 (bent tube) or the second hard tube 400 (straight tube) is selected to be connected to the needle 500.

[0066] In one embodiment, the first hard tube 200 , the second hard tube 400 , the vacuum portion 100 , and the fixing sheet 600 are made of plastic.

[0067] In this embodiment, compared with inorganic materials (such as glass, etc.), plastic materials have the advantages of mature processing and convenient production of disposable products. Specifically, the above structure of plastic materials has the characteristics of lightness, low cost and easy processing. It is usually made of polymer materials such as polypropylene. These materials have good chemical stability and biocompatibility, and can ensure that no harmful substances are released during use, thereby ensuring the safety of patients. In addition, the appearance of plastic materials is smooth and comfortable to the touch, which helps to relieve the tension of patients.

[0068] In one embodiment, the hose 310 is made of silicone.

[0069] In this embodiment, the material of the hose 310 is silicone, which has the advantages of excellent softness and mature technology; its anti-aging properties can improve its shelf life.

[0070] In summary, in the pathological specimen collector provided by the utility model, after the piston part 120 is pulled out and negative pressure is formed in the syringe 110, through the combination of the fixing piece 600 and the first comb tooth structure 124, after the user releases the piston part 120, the fixing piece 600 can limit the fall of the piston part 120, thereby maintaining the negative pressure in the syringe 110, and there is no need to operate the vacuum part 100; after maintaining the appropriate negative pressure, the second hard tube 400 or the needle 500 is held to complete the puncture action, and finally the ball 320 on the hose 310 on the switch part 300 is pinched to complete the liquid extraction process; the above structural design realizes the use effect of single-person adjustment and convenient and adjustable liquid extraction intensity.

[0071] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pathological specimen collector, characterized in that: include: The vacuum part (100) comprises a syringe (110) and a piston part (120), wherein the two ends of the syringe (110) in the length direction are respectively an opening and an interface nozzle (111), and the piston part (120) is movably installed in the opening, and the piston part (120) comprises a piston (121) and a rod body (122) connected to each other, and the piston (121) forms a seal with the inner wall of the syringe (110), and the rod body (122) comprises four plates (123) evenly arranged around the syringe so that the cross section of the rod body (122) is in the shape of a cross, and the outer end of one of the plates (123) is provided with a first comb tooth structure (124) arranged along the length direction thereof; A first hard tube (200), one end of which in the length direction is connected to the interface nozzle (111); The switch part (300) comprises a hose (310) and a sphere (320), wherein one end of the hose (310) in the length direction is wrapped and connected to the other end of the first hard tube (200) in the length direction, and the sphere (320) is elastically fixed inside the hose (310); A second hard tube (400), one end of which in the length direction is wrapped and connected to the other end of the soft tube (310) in the length direction; A needle (500) connected to one end of the second hard tube (400) in the length direction; A fixing sheet (600) provided for the first comb tooth structure (124); Wherein, when the fixing sheet (600) is combined with the first comb tooth structure (124), the fixing sheet (600) is fixed to the opening.

2. The pathological specimen collector according to claim 1, characterized in that: A second comb tooth structure (125) is provided at the outer end of the plate body (123) opposite to the first comb tooth structure (124); the second comb tooth structure (125) and the first comb tooth structure (124) are arranged in a staggered manner.

3. The pathological specimen collector according to claim 1, characterized in that: The outer wall of the syringe (110) is provided with scales in the length direction.

4. The pathological specimen collector according to claim 1, characterized in that: A hand-held piece (112) is provided on the outer periphery of the opening, and the fixing piece (600) is integrally formed with the hand-held piece (112), wherein the syringe (110) is made of plastic.

5. The pathological specimen collector according to claim 1, characterized in that: Fixed rings are respectively provided at both ends of the hose (310) in the length direction.

6. The pathological specimen collector according to claim 1, characterized in that: The pathological specimen collector further comprises a clamping card, and the clamping card is arranged corresponding to the hose (310).

7. The pathological specimen collector according to claim 1, characterized in that: The distance between the other end of the second hard tube (400) in the length direction and the sphere (320) is less than 3 centimeters.

8. The pathological specimen collector according to claim 1, characterized in that: The first hard tube (200) is a curved tube, the second hard tube (400) is a straight tube, and the length of the soft tube (310) is greater than 10 centimeters.

9. The pathological specimen collector according to claim 1, characterized in that: The first hard tube (200), the second hard tube (400), the vacuum portion (100) and the fixing sheet (600) are made of plastic material.

10. The pathological specimen collector according to claim 1, characterized in that: The hose (310) is made of silicone.

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