A puncture positioning device
By designing a positioning device for puncture, the problem that medical staff need to hold the needle for a long time during pericardial puncture to prevent deviation or fall off is solved, and the stable limit of the needle is achieved, reducing the burden on medical staff.
Patent Information
- Application Number
- CN202420926641.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-29
AI Technical Summary
During pericarponement, medical staff need to spend a lot of time and effort holding needles to prevent them from being offset or fall off, resulting in increased burden on medical staff.
A puncture positioning device is designed, including a fixing plate, a support rod, a needle threading tube, an adjustment assembly and a clamp. The fixing plate is adhered to the patient's skin by an adhesion assembly, and the adjustment assembly adjusts the position of the needle through the needle through the needle through the needle and is limited to the clamp to prevent the needle from moving.
By limiting the position of the needle, the need for manual support for medical staff is reduced, the work burden of medical staff is reduced, and the stability of the needle is improved.
Smart Images
Figure CN222723101U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of puncture needle positioners, in particular to a positioning device for puncture. Background Art
[0002] In the cardiology department, if a patient has pericardial effusion, pericardiocentesis can be used for treatment. During the pericardiocentesis operation, a pericardiocentesis needle and a syringe will be used. The pericardiocentesis needle consists of a needle and a rubber tube. During the operation, the needle is inserted into the patient's pericardial cavity, and then the rubber tube is connected to the syringe. After that, the syringe is operated to extract the pericardial effusion in the pericardial cavity.
[0003] When using a syringe to extract pericardial fluid, you need to hold the needle with your hand to prevent the needle from shifting or falling off due to patient movement or other reasons during the extraction process, and to ensure the stability of the needle.
[0004] During the holding process, medical staff are generally required to hold the needle with their hands, and the extraction of pericardial fluid takes a certain amount of time, so it takes a certain amount of time to hold the needle, which increases the burden on medical staff. Utility Model Content
[0005] The purpose of the utility model is to provide a puncture positioning device to solve the problem of increasing the burden on medical personnel.
[0006] The puncture positioning device comprises a horizontally arranged fixing plate, on which an adhesion component for adhering to the patient's skin is arranged, and a support rod is vertically fixed to the top of the fixing plate; a needle tube for the puncture needle to pass through is arranged above the support rod, and an adjustment component for adjusting the angle of the needle tube is arranged on the support rod; the needle tube is provided with a plurality of through holes communicating with the inside and outside, and each of the through holes is provided with a clamping block for squeezing the puncture needle into the needle tube; the clamping block is in contact with the side wall of the through hole and is made of elastic material.
[0007] Furthermore, the adhesive component is adhesive tape, and the adhesive tape is fixed to the bottom of the fixing plate.
[0008] Furthermore, the adjustment assembly includes a universal ball, a groove for placing the universal ball on the top of the support rod, a connecting block is fixed on the universal ball through a connecting rod, and the needle tube is fixed on the connecting block; a clamping plate for clamping the universal ball in the groove is provided in the groove, and a threaded hole communicating with the interior of the groove is provided on the outer wall of the support rod, and a screw threadedly matched with the screw is installed in the threaded hole; one end of the screw passes through the threaded hole and is located in the groove, and is rotatably connected to the clamping plate, and the other end of the screw passes through the threaded hole and is located on the outside of the support rod.
[0009] Furthermore, a handle is fixed to the other end of the screw.
[0010] Furthermore, the clamping block is made of rubber material.
[0011] Furthermore, corresponding to each clamping block, a limit block is provided on both the inner and outer sides of the needle threading tube, the limit block located on the inner side of the needle threading tube is fixed on the clamping block located on the inner side of the needle threading tube; the limit block located on the outer side of the needle threading tube is fixed on the clamping block located on the outer side of the needle threading tube; the aperture of the through hole is smaller than the length of the limit block; the limit block is made of elastic material.
[0012] Furthermore, the limit block is made of rubber material.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model adheres the fixing plate to the patient's skin through an adhesion component, and then adjusts the position of the needle tube through an adjustment component to adjust the needle tube to a suitable puncture position; then the needle of the pericardial puncture needle is passed out from the inside of the needle tube and inserted into a specified position, and the position of the needle can be limited by pressing the clamping block to prevent the needle from moving. Therefore, when the needle is limited, the problem of increased burden caused by the need for medical staff to hold the needle to ensure its stability in the prior art is avoided. Therefore, the utility model reduces the burden on medical staff by limiting the position of the needle. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 for Figure 1 Schematic diagram of the structure from top view;
[0017] Figure 3 for Figure 1 Main view structure diagram;
[0018] Figure 4 This is a state diagram used in the present utility model.
[0019] The names of the components in the figure are: 1. fixing plate 2. adhesive tape 3. support rod 4. universal ball 5. handle 6. screw 7. splint 8. connecting block 9. needle threading tube 10. clamping block 11. limit block. DETAILED DESCRIPTION
[0020] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
[0021] Example
[0022] The puncture positioning device described in this embodiment is as follows: Figure 1 and Figure 2 As shown, it includes a horizontally arranged fixing plate 1, which is placed on one side of the pericardiocentesis position when in use;
[0023] like Figure 1 As shown, a tape 2 is provided on the fixing plate 1, and the tape 2 is fixed to the bottom of the fixing plate 1; this section of the scheme as a whole constitutes an adhesive component for adhering to the patient's skin; when the tape 2 is in use, medical glue is provided on both sides of the tape 2, the glue on one side is convenient for adhering to the bottom of the fixing plate 1, and the glue on the other side is used to adhere to the patient's skin; when the tape 2 is not in use, a release paper is provided on the side for adhering to the patient's skin, and the release paper can prevent the glue from adhering to other objects when the tape 2 is not in use; when in use, the release paper is torn off, and then the tape 2 is adhered to the patient's skin, thereby driving the fixing plate 1 to adhere to the patient's skin; during the production process, the tape 2 can produce multiple replacement packs, and when the adhesiveness of the tape 2 is not strong after multiple uses or after being contaminated, the tape 2 is replaced;
[0024] In the specific implementation process, the adhesive tape 2 in the adhesive component can also be replaced with polyurethane glue. The glue liquid is generally a polymer. The glue is applied to a special film, which is similar to an adhesive. At the same time, it can avoid allergies and irritation to the skin. It will not cause any side effects or harm to the body during use. After use, it only needs to be washed with warm water to easily remove the stains on the polyurethane glue without affecting the next use. For example, polyurethane glue is also used in chest stickers in our lives. Therefore, through the design of polyurethane glue, it can not only be used multiple times and is easy to replace, but also avoid allergies, and is easy to clean and not easy to leave glue.
[0025] like Figure 1 As shown, a support rod 3 is vertically fixed to the top of the fixing plate 1; the bottom of the support rod 3 is fixed to the top of the fixing plate 1; because the fixing plate 1 is adhered to the patient's skin through the adhesive assembly, the support rod 3 is driven to be limited on the upper side of the patient's skin;
[0026] like Figure 1 , Figure 2 and Figure 3 As shown, a needle tube 9 for the puncture needle to pass through is provided above the support rod 3. The inner diameter of the needle tube 9 is designed according to the thickness of the needle head of the pericardial puncture needle, so that after the needle head of the pericardial puncture needle is inserted into the needle tube 9, there is no gap for the needle head to move too much in the needle tube 9;
[0027] like Figure 1As shown, a universal ball 4 is arranged on the support rod 3, a groove for placing the universal ball 4 is provided on the top of the support rod 3, a connecting block 8 is fixed on the universal ball 4 through a connecting rod, and a needle tube 9 is fixed on the connecting block 8; a clamping plate 7 for clamping the universal ball 4 in the groove is arranged in the groove, a threaded hole communicating with the inside of the groove is provided on the outer wall of the support rod 3, a screw 6 threadedly matched with the screw is passed through the threaded hole; one end of the screw 6 passes through the threaded hole and is located in the groove, and is rotatably connected to the clamping plate 7, and the other end of the screw 6 passes out The threaded hole is located on the outside of the support rod 3; this section of the scheme as a whole constitutes an adjustment component for adjusting the angle of the needle threading tube 9; because the universal ball 4 is fixed with the connecting block 8 through the connecting rod, and the connecting block 8 is fixed to the needle threading tube 9, when the universal ball 4 is located in the groove, the angle of the connecting block 8 can be adjusted by rotating the angle of the universal ball 4, and the rotation of the connecting block 8 can drive the needle threading tube 9 to rotate, thereby adjusting the angle of the needle threading tube 9; when one end of the screw 6 is specifically rotatably connected to the clamping plate 7, it can be installed on the clamping plate 7 through a bearing, such as Figure 1 In the orientation, a blind hole is opened on the left side wall of the splint 7, and a bearing is installed in the blind hole. The outer ring of the bearing is fixed in the blind hole, and the right end of the screw rod 6 is fixed to the inner ring of the bearing, thereby realizing a rotating connection; when in use, the needle tube 9 is aligned with the position where puncture is required. After the position adjustment of the needle tube 9 is completed, the screw rod 6 is rotated by twisting the screw rod 6, and the screw rod 6 can drive the splint 7 to move left and right. During the movement of the splint 7 left and right, the universal ball 4 can be clamped between the splint 7 and the groove, so as to fix the position of the universal ball 4 and prevent it from continuing to rotate. When the position of the universal ball 4 is limited, the position of the needle tube 9 is driven to be limited, and the needle head of the pericardial puncture needle passes through the inside of the needle tube 9 to puncture the patient's pericardium;
[0028] In the specific implementation process, the clamping plate 7 in the adjustment assembly is an arc-shaped structure. Through the design of the arc-shaped structure, the contact surface between the clamping plate 7 and the universal ball 4 can be increased, so that the universal ball 4 can be clamped in the groove more stably;
[0029] like Figure 1 As shown, a handle 5 is fixed to the other end of the screw rod 6. The design of the handle 5 makes it easier to move the screw rod 6.
[0030] like Figure 1 and Figure 2As shown, the needle tube 9 is provided with a plurality of through holes which are connected inside and outside, and each of the through holes is provided with a clamping block 10 for squeezing the puncture needle into the needle tube 9; the clamping block 10 is in contact with the side wall of the through hole and is made of elastic material; because the clamping block 10 is elastic, when the side wall of the clamping block 10 contacts the hole wall, the clamping block 10 can be stuck in the through hole through the friction force generated by its elasticity; when the needle of the pericardial puncture needle passes through the needle tube 9, a syringe is connected to the rubber tube of the pericardial puncture needle to extract the pericardial effusion, and the position of the needle needs to be fixed to prevent the needle from being offset; at this time, the clamping block 10 is pressed by hand, and the clamping block 10 moves to one side of the needle tube 9. During the movement, a part of the clamping block 10 is stuck in the through hole through friction, and the other part contacts the needle and is stuck on the needle through friction. Therefore, under the action of friction, the needle can be pressed tightly against the inside of the needle tube 9; as shown Figure 1 In the orientation, it is preferred that the through holes on the needle tube 9 are opposite to each other in pairs, so that the two clamping blocks 10 are installed relative to each other, and then when the needle passes through the needle tube 9, the needle can be clamped between the two clamping blocks 10 by friction, thereby improving the stability of the needle limit in the needle tube 9; when the pericardial puncture needle is used up and it is necessary to remove the pericardial puncture needle from the needle tube 9, it is only necessary to pull the needle out with force, and the friction can be overcome during the pulling out process, and the needle can be directly taken out of the needle tube 9, so that the design of the clamping block 10 is not only convenient for clamping the needle, but also for removing the needle; when the clamping block 10 is used up, it is pulled hard to move it to the outside of the needle tube 9, so that the clamping block 10 can be pulled out, which is convenient for cleaning and disinfection of the clamping block 10;
[0031] like Figure 1 and Figure 4 As shown, corresponding to each clamping block 10, a limiting block 11 is provided on both the inner and outer sides of the needle threading tube 9, the limiting block 11 located on the inner side of the needle threading tube 9 is fixed on the clamping block 10 located on the inner side of the needle threading tube 9; the limiting block 11 located on the outer side of the needle threading tube 9 is fixed on the clamping block 10 located on the outer side of the needle threading tube 9; the aperture of the through hole is smaller than the length of the limiting block 11; the limiting block 11 is made of elastic material; because the aperture of the through hole is smaller than the length of the limiting block 11, the limiting block 11 cannot pass through the position of the through hole; as shown in FIG. Figure 1 In the orientation, because the upper and lower sides of the clamping block 10 are provided with limit blocks 11, the clamping block 10 is prevented from falling out of the position of the through hole, so that the clamping block 10 can only move at the position of the through hole, thereby ensuring the stability of the clamping block 10 during use; Figure 4 In the middle position, when the needle needs to be clamped, the limit block 11 will contact the needle. The limit block 11 is made of elastic material, so that the needle can be clamped between the limit blocks 11 by friction;
[0032] The clamping block 10 is made of rubber material, and the limiting block 11 is made of rubber material; rubber has many advantages, such as high elasticity, which can be deformed under the action of external force and return to its original shape after the external force is removed; high wear resistance, which can increase the service life; secondly, it also has good anti-slip performance, so the needle can be clamped on the clamping block 10 and the limiting block 11 more stably;
[0033] In the specific use process: first, the fixing plate 1 is adhered to the patient's skin by the adhesive tape 2, and then the universal ball 4 is rotated to drive the needle tube 9 to move so as to adjust the angle of the needle tube 9. When the appropriate puncture angle is adjusted, the universal ball 4 is clamped in the groove by twisting the screw 6 to drive the clamping plate 7 to move, so that the puncture position of the needle tube 9 can be fixed, thereby positioning the puncture position of the puncture needle; then the pericardial puncture needle is passed out from the inside of the needle tube 9 and inserted into the patient's pericardium. When the needle of the pericardial puncture needle punctures to the designated position and extracts pericardial fluid, the needle can be clamped on the clamping block 10 by squeezing the clamping block 10 toward the inner side of the needle tube 9, thereby achieving the purpose of positioning the needle position and preventing the needle from being offset. Finally, the hands of the medical staff can be freed, and there is no need to hold the position of the needle with their hands, thereby reducing the burden on the medical staff.
Claims
1. A puncture positioning device, comprising a horizontally arranged fixing plate (1), the fixing plate (1) being provided with an adhesive component for adhering to the patient's skin, characterized in that: A support rod (3) is vertically fixed on the top of the fixing plate (1); a needle threading tube (9) for the puncture needle to pass through is arranged above the support rod (3), and an adjustment component for adjusting the angle of the needle threading tube (9) is arranged on the support rod (3); a plurality of through holes communicating with each other inside and outside are opened on the needle threading tube (9), and a clamping block (10) for squeezing the puncture needle into the needle threading tube (9) is arranged in each of the through holes; the clamping block (10) is in contact with the side wall of the through hole and is made of elastic material. The invention relates to a needle threading tube (9); a limiting block (11) is provided on both the inner and outer sides of the needle threading tube (9) corresponding to each clamping block (10); the limiting block (11) located on the inner side of the needle threading tube (9) is fixed on the clamping block (10) located on the inner side of the needle threading tube (9); the limiting block (11) located on the outer side of the needle threading tube (9) is fixed on the clamping block (10) located on the outer side of the needle threading tube (9); the aperture of the through hole is smaller than the length of the limiting block (11); and the limiting block (11) is made of elastic material.
2. The puncture positioning device according to claim 1, characterized in that: The adhesive component is an adhesive tape (2), and the adhesive tape (2) is fixed to the bottom of the fixing plate (1).
3. The puncture positioning device according to claim 1, characterized in that: The adjustment assembly comprises a universal ball (4), a groove for receiving the universal ball (4) is provided at the top of the support rod (3), a connecting block (8) is fixed on the universal ball (4) via a connecting rod, and a needle tube (9) is fixed on the connecting block (8); a clamping plate (7) for clamping the universal ball (4) in the groove is provided in the groove, a threaded hole communicating with the inside of the groove is provided on the outer wall of the support rod (3), a screw rod (6) threadedly matched with the screw rod is passed through the threaded hole; one end of the screw rod (6) passes through the threaded hole and is located in the groove, and is rotatably connected to the clamping plate (7), and the other end of the screw rod (6) passes through the threaded hole and is located on the outside of the support rod (3).
4. The puncture positioning device according to claim 3, characterized in that: A handle (5) is fixed to the other end of the screw rod (6).
5. The puncture positioning device according to claim 1, characterized in that: The clamping block (10) is made of rubber material.
6. The puncture positioning device according to claim 1, characterized in that: The limiting block (11) is made of rubber material.