Scissors for assisting in separating placental basal decidua

Abstract

The utility model relates to medical instrument technical field, and disclose a kind of scissors for assisting separation placenta bottom decidua, including scissors body, blade structure and integrated collection system, the scissors body includes first shear arm and second shear arm, the first shear arm and second shear arm are mutually hinged, the front end of first shear arm is provided with first tool bit, the front end of second shear arm is provided with second tool bit, the rear end of first shear arm is fixedly provided with first handle.The scissors for assisting separation placenta bottom decidua, by first tool bit and second tool bit are set as blunt round fine structure and carry out passivation treatment, cooperate with sawtooth upper blade and ultrathin smooth blade lower blade, both can avoid piercing placenta blood vessel and lead to blood cell contamination, and also can realize the stable fixation and accurate cutting of target tissue, reduce mechanical damage, effectively improve stem cell survival rate and purity, solve the problem that traditional scissors can cause cell damage, stem cell mixed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a pair of scissors used to assist in the separation of the decidua basalis of the placenta. Background Technology

[0002] Traditional surgical scissors have several significant drawbacks in the separation of maternal stem cells from the decidua basalis of the placenta. These drawbacks negatively impact the quality of stem cell acquisition and subsequent culture outcomes during actual operation. First, due to the lack of targeted design, traditional scissors easily cause mechanical damage to the tissue when cutting placental tissue. This damage directly disrupts the structural integrity of stem cells, leading to a significant reduction in their survival rate. Second, ordinary surgical scissors lack the ability to distinguish between target tissue and non-target areas. During operation, they cannot accurately differentiate between the placental decidua basalis tissue to be separated and surrounding blood vessels, other connective tissues, and other non-target areas. This makes it easy for non-target components to be mixed into the cut tissue, resulting in stem cell contamination and potentially even contamination by blood cells, further affecting the purity of the stem cells.

[0003] In addition, traditional surgical scissors lack a corresponding immediate collection structure. This design deficiency has brought about significant problems. After cutting the target tissue fragments with traditional scissors, staff need to transfer these fragments to a special storage container. This transfer process not only increases the number of times the sample is exposed to the external environment, greatly increasing the risk of sample contamination, but the additional operation steps also consume more time, directly delaying the start of the subsequent cell culture cycle. The delay in the culture cycle will seriously affect the final cell culture quality, which is not conducive to the smooth progress of subsequent related research and application work. Therefore, from the perspective of improving the efficiency of maternal stem cell isolation and ensuring stem cell quality, there is an urgent need for a special type of scissors that can specifically solve all the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a pair of scissors for assisting in the separation of the decidua basalis of the placenta.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pair of scissors for assisting in the separation of the decidua basalis of the placenta includes a scissor body, a blade structure, and an integrated collection system. The scissor body includes a first scissor arm and a second scissor arm, which are hinged to each other. A first cutting head is provided at the front end of the first scissor arm, and a second cutting head is provided at the front end of the second scissor arm. A first handle is fixedly provided at the rear end of the first scissor arm, and a second handle is fixedly provided at the rear end of the second scissor arm. The first and second cutting heads have a blunt, rounded, fine structure and are passivated. The blade structure includes an upper blade and a lower blade. The integrated collection system includes a fixing block.

[0007] As a further improvement of this utility model: the upper blade is serrated, the lower blade is an ultra-thin smooth blade, and the surface of the blade structure is coated with a diamond-like anti-stick coating.

[0008] As a further embodiment of this utility model: the fixing block is fixedly installed on the back side of the first scissor arm, and a negative pressure adsorption hole is fixedly provided inside the fixing block.

[0009] As a further improvement of this utility model: a connecting tube is fixedly provided on the lower side of the negative pressure adsorption hole, and a sterile collection tube is provided at the end of the connecting tube away from the negative pressure adsorption hole.

[0010] As a further improvement of this utility model: the sterile collection tube is provided with a negative pressure interface, and the sterile collection tube is made of transparent medical-grade plastic material.

[0011] As a further improvement of this utility model: the connecting tube is a medical-grade elastic flexible tube, which is made of a high-molecular elastic material that meets the biocompatibility standards for medical devices and has excellent flexibility and tensile strength.

[0012] As a further improvement of this utility model: the outer surfaces of the first handle and the second handle are provided with anti-slip rubber sleeves. The anti-slip rubber sleeves are integrally molded from medical-grade soft rubber material, with uniform thickness and close fit to the outer surface of the handle, so that there will be no loosening or displacement.

[0013] Compared with the prior art, this utility model provides a pair of scissors for assisting in the separation of the decidua basalis of the placenta, which has the following beneficial effects:

[0014] 1. This pair of scissors for assisting in the separation of the decidua basalis of the placenta, by setting the first and second blades to a blunt and rounded fine structure and performing a blunting treatment, combined with a serrated upper blade and an ultra-thin smooth lower blade, can not only avoid puncturing placental blood vessels and causing blood cell contamination, but also achieve stable fixation and precise cutting of the target tissue, reduce mechanical damage, effectively improve the survival rate and purity of stem cells, and solve the problem of cell damage and stem cell contamination caused by traditional scissors;

[0015] 2. The scissors used to assist in the separation of the decidua basalis of the placenta have an integrated collection system consisting of a negative pressure adsorption hole on the back of the blade, a connecting tube, and a sterile collection tube. This system can immediately draw the cut tissue fragments into the sterile collection tube, reducing the number of sample exposures and the chance of contamination. At the same time, it eliminates the need for additional tissue transfer steps, avoids delaying the culture cycle, and optimizes the operation process of "precise cutting and immediate preservation".

[0016] 3. The scissors used to assist in the separation of the decidua basalis of the placenta have a diamond-like anti-adhesion coating on the blade surface, which can reduce tissue adhesion and ensure the smoothness of the cutting process; the anti-slip rubber sleeve on the outer surface of the handle improves the stability and comfort of the grip. The overall structural design fits the operational requirements of separating maternal stem cells from the decidua basalis of the placenta, effectively improving the efficiency of manual peeling and meeting the core requirements of the invention.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the scissor body of this utility model;

[0020] Figure 3 This is an enlarged structural schematic diagram of a part of the present invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the first scissor arm of this utility model.

[0022] In the diagram: 1. Scissors body; 101. First scissor arm; 102. Second scissor arm; 103. First blade head; 104. Second blade head; 105. First handle; 106. Second handle; 2. Blade structure; 201. Upper blade; 202. Lower blade; 3. Integrated collection system; 301. Fixing block; 302. Negative pressure adsorption hole; 303. Connecting tube; 304. Sterile collection tube; 305. Negative pressure interface. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example: A pair of scissors used to assist in the separation of the decidua basalis of the placenta, such as Figures 1-4 As shown, the device includes a scissor body 1, a blade structure 2, and an integrated collection system 3. The scissor body 1 includes a first scissor arm 101 and a second scissor arm 102, which are hinged together. The front end of the first scissor arm 101 is provided with a first blade head 103, and the front end of the second scissor arm 102 is provided with a second blade head 104. The rear end of the first scissor arm 101 is fixedly provided with a first handle 105, and the rear end of the second scissor arm 102 is fixedly provided with a second handle 106. The first blade head 103 and the second blade head 104 are blunt and rounded fine structures and are blunted. The blade structure 2 includes an upper blade 201 and a lower blade 202. The integrated collection system 3 includes a fixing block 301.

[0026] like Figures 1-4 As shown, the upper blade 201 is serrated, and the lower blade 202 is an ultra-thin smooth blade. The surface of the blade structure 2 is coated with a diamond-like carbon anti-stick coating. The fixing block 301 is fixedly installed on the back side of the first scissor arm 101. A negative pressure adsorption hole 302 is fixedly provided inside the fixing block 301. A connecting tube 303 is fixedly provided on the lower side of the negative pressure adsorption hole 302. A sterile collection tube 304 is provided at the end of the connecting tube 303 away from the negative pressure adsorption hole 302. Coating the surface of the blade structure 2 with a diamond-like carbon anti-stick coating can reduce tissue adhesion and ensure the smoothness of the cutting process. The anti-slip rubber sleeve on the outer surface of the handle improves grip. Maintaining stability and comfort, the overall structural design conforms to the operational requirements of separating maternal stem cells from the decidual layer of the placenta, effectively improving manual dissection efficiency and meeting the core requirements of the invention. By setting the first blade 103 and the second blade 104 as a blunt and rounded fine structure and performing passivation treatment, combined with the serrated upper blade 201 and the ultra-thin smooth lower blade 202, it can avoid puncturing placental blood vessels and causing blood cell contamination, while achieving stable fixation and precise cutting of the target tissue, reducing mechanical damage, effectively improving the survival rate and purity of stem cells, and solving the problem of cell damage and stem cell contamination caused by traditional scissors.

[0027] like Figures 1-4As shown, the sterile collection tube 304 is equipped with a negative pressure interface 305. The sterile collection tube 304 is made of transparent medical-grade plastic, and the connecting tube 303 is a medical-grade elastic flexible tube. This medical-grade elastic flexible tube is made of a high-molecular elastic material that meets the biocompatibility standards for medical devices and has excellent flexibility and tensile strength. The outer surfaces of the first handle 105 and the second handle 106 are equipped with anti-slip rubber sleeves. These anti-slip rubber sleeves are integrally molded from medical-grade soft rubber material. They are of uniform thickness and fit tightly to the outer surface of the handles, preventing loosening or displacement. With the help of the integrated collection system 3 consisting of the negative pressure adsorption hole 302 on the back of the blade, the connecting tube 303, and the sterile collection tube 304, the cut tissue fragments can be immediately sucked into the sterile collection tube 304, reducing the number of sample exposures and the probability of contamination. At the same time, it eliminates the need for additional tissue transfer steps, avoids delaying the culture cycle, and optimizes the operation process of "precise cutting and immediate preservation".

[0028] Working principle: When operating, the scissors first avoid damage to blood vessels by using a blunt, rounded blade. Then, the upper serrated blade 201 fixes the tissue, and the ultra-thin lower blade 202 precisely cuts, reducing mechanical damage and cell contamination. At the same time, the integrated collection system 3 uses negative pressure to immediately collect tissue fragments into a sterile collection tube 304, reducing exposure and contamination. Ultimately, this achieves the goal of improving peeling efficiency, cell yield, and purity, thus overcoming the shortcomings of traditional scissors.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pair of scissors for assisting in the separation of the decidua basalis of the placenta, characterized in that, The device includes a scissor body (1), a blade structure (2), and an integrated collection system (3). The scissor body (1) includes a first scissor arm (101) and a second scissor arm (102), which are hinged to each other. The first scissor arm (101) has a first blade head (103) at its front end, and the second scissor arm (102) has a second blade head (104) at its front end. The first scissor arm (101) has a first handle (105) fixedly installed at its rear end, and the second scissor arm (102) has a second handle (106) fixedly installed at its rear end. The first blade head (103) and the second blade head (104) have a blunt, rounded, fine structure and are passivated. The blade structure (2) includes an upper blade (201) and a lower blade (202). The integrated collection system (3) includes a fixing block (301).

2. The scissors for assisting in the separation of the decidua basalis as described in claim 1, characterized in that: The upper blade (201) is serrated, the lower blade (202) is an ultra-thin smooth blade, and the surface of the blade structure (2) is coated with a diamond-like anti-stick coating.

3. The scissors for assisting in the separation of the decidua basalis as described in claim 1, characterized in that: The fixing block (301) is fixedly installed on the back side of the first scissor arm (101), and a negative pressure adsorption hole (302) is fixedly provided inside the fixing block (301).

4. The scissors for assisting in the separation of the decidua basalis as described in claim 3, characterized in that: A connecting tube (303) is fixedly provided on the lower side of the negative pressure adsorption hole (302), and a sterile collection tube (304) is provided at the end of the connecting tube (303) away from the negative pressure adsorption hole (302).

5. The scissors for assisting in the separation of the decidua basalis as described in claim 4, characterized in that: The sterile collection tube (304) is provided with a negative pressure interface (305), and the sterile collection tube (304) is made of transparent medical-grade plastic.

6. The scissors for assisting in the separation of the decidua basalis as described in claim 4, characterized in that: The connecting tube (303) is a medical-grade elastic hose, which is made of a high-molecular elastic material that meets the biocompatibility standards for medical devices and has excellent flexibility and tensile strength.

7. The scissors for assisting in the separation of the decidua basalis as described in claim 1, characterized in that: The outer surfaces of the first handle (105) and the second handle (106) are provided with anti-slip rubber sleeves. The anti-slip rubber sleeves are integrally molded from medical-grade soft rubber material. They are of uniform thickness and fit tightly to the outer surface of the handles, so there will be no loosening or displacement.

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