Auxiliary injection device for external muscle group injection of tumor drug
By designing a tumor drug exterior muscle group injection assist injection device that contains fixed racks, straps and positioning mechanisms, it solves the problem that the accuracy and consistency of the injection site in the existing technology are difficult to guarantee, and the high accuracy and accuracy of injection and the injecting Safety.
Patent Information
- Application Number
- CN202420888058.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-04-25
AI Technical Summary
In the prior art, when subcutaneous injection of tumor drugs such as trastuzumab, it is difficult to ensure the accuracy and consistency of the injection site, resulting in an increase in adverse injection reactions and the risk of complications.
A tumor drug external muscle group injection auxiliary injection device includes fixed racks, straps and positioning mechanisms. The device is fixed on the patient's thighs through a fixed rack and straps. And angle control.
The accurate positioning and angle control of the injection site is realized, the accuracy and consistency of the injection are improved, and the risk of adverse injection and complications is reduced.
Smart Images
Figure CN222399798U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of medical auxiliary tools, and in particular relates to an auxiliary injection device for the injection of tumor drugs into the extramuscular group. Background Art
[0002] About 60% of breast cancer patients are diagnosed with early-stage breast cancer, of which 15% to 20% of invasive breast cancers are human epidermal growth factor receptor 2 (HER2) positive, manifested by HER2 gene amplification or protein overexpression. HER2-positive breast cancer is highly invasive, with a high risk of recurrence and metastasis, poor response to endocrine therapy and standard chemotherapy, and poor prognosis. High HER2 expression is considered an important predictor of poor breast cancer outcomes. With the development and application of anti-HER2 therapeutic drugs, the outcomes of patients with this molecular subtype of breast cancer have been significantly improved. Anti-HER2 targeted therapy mainly includes three types of drugs, namely traditional macromolecular antibodies, small molecule tyrosine kinase inhibitors (TKIs) and antibody-drug conjugates (ADCs). Among them, macromolecular antibodies targeting the extracellular domain of HER2, such as trastuzumab and pertuzumab, are the most widely used.
[0003] Trastuzumab injection is generally used by subcutaneous injection. The injection site is generally selected on the patient's thigh, a healthy skin area with no redness, no abrasions or scars, and moderate hardness. The injection site will alternate between the left and right thighs. The new injection site should be at least 2.5 cm apart from the old site. The angle between the syringe needle and the skin should be maintained at 30° for intramuscular injection, and the injection time is 2-5 minutes.
[0004] For a long time, the effect of subcutaneous injection has been heavily dependent on the personal experience of the operator. This drug has strict requirements and requires 17-18 consecutive treatments. Even experienced nurses may have errors in the injection site due to the complex anatomical structure of the treatment area, too long treatment intervals, inconsistent preoperative and intraoperative positioning, and changes in the patient's intraoperative position. It is impossible to ensure that the new and old injection sites are 2.5 cm apart. At the same time, due to the different operating levels among medical staff, it is difficult to ensure that the injection angle is maintained at 30° each time, which will lead to an increase in adverse reactions to the injection and even accidental injury to important organs and tissues, leading to complications. Therefore, injection positioning auxiliary technology has been proposed. The injection positioning auxiliary device can help the operator adjust and record the specific location of each injection to improve the accuracy of subcutaneous injections.
[0005] Therefore, the applicant proposed a tumor drug injection positioning auxiliary device with the advantages of simple structure, measurable aperture, easy operation, and precise positioning. Summary of the invention
[0006] The technical problem to be solved by the utility model is to provide a tumor drug injection positioning auxiliary device which has the advantages of simple structure, measurable aperture, easy operation, accurate positioning and the like.
[0007] The current practice is that after the syringe draws the drug solution, the operator selects an uninjected point based on memory and directly injects the drug after manually controlling the injection angle.
[0008] The method of the present application is to draw the trastuzumab injection into the syringe for standby use before treatment. Then the patient sits or lies flat with the knee flexed, fixes the device to the patient's thigh, selects a suitable positioning hole on the body to install the positioning mechanism, and then uses the positioning mechanism to select the uninjected site and fix the injection angle before administering the drug.
[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0010] The utility model discloses an auxiliary injection device for extramuscular injection of tumor drugs, characterized in that it comprises a fixing frame 2 and a main body 4, one end of the main body 4 is connected to the fixing frame 2, and the other end is provided with a strap 7, the other end of the strap 7 can be connected to the fixing frame 2 through a connecting mechanism, and the main body 4 is tied to the thigh of the patient, a plurality of positioning holes 6 are provided on the surface of the main body 4, the positioning holes 6 can be embedded in the positioning mechanism 5, the positioning mechanism 5 at least comprises: a base 15, the shape of the base 15 is the same as the positioning hole 6, so that the base 15 can be embedded in the positioning hole 6, the upper part of the base 15 is provided with an inclined guide groove 14, the fixing frame 2 is provided with a positioning plate 11 and a positioning pointer 3, the positioning plate 11 can swing around the hinged portion with the fixing frame 2, that is, the fixing frame 2 and the positioning plate 11 form an angle of 90°, and the positioning pointer 3 is arranged on the outside of the fixing frame 2.
[0011] In actual use: the patient sits with his legs bent at 90 degrees, the fixing frame 2 is placed on the upper surface of the thigh, the positioning plate 11 is clamped on the front side of the calf, the fixing frame 2 and the positioning plate 11 are pressed against the thigh and calf, and the body 4 is fixed to the outside of the patient's thigh with the strap 7, and then the base 15 is embedded in the positioning hole 6, and the prepared syringe is used to place the syringe needle in the guide groove 14, and move along the guide groove 14 toward the thigh to achieve subcutaneous injection.
[0012] A plurality of positioning holes 6 are provided on the body 4 , and the positioning holes 6 can be arranged on the surface of the body 4 in a certain regular pattern. The positioning holes 6 are through holes. After the base 15 is embedded in one of the positioning holes 6 , the syringe needle passes through the adjacent positioning hole 6 for subcutaneous injection.
[0013] Each positioning hole 6 can also be numbered, so that it is convenient to record which hole the injection was made from during subcutaneous injection, which is convenient for statistics and records.
[0014] As an improvement, a positioning block 13 is further provided. The positioning block 13 is in the form of a triangular prism and is arranged on the periphery of the base 15 . The guide groove 14 is arranged on the wedge-shaped surface of the positioning block 13 .
[0015] In actual use: the positioning block 13 and the base 15 are a whole. After the base 15 is embedded in the positioning hole 6, the angle between the positioning block 13 and the adjacent positioning hole 6 is rotated and the device can be used.
[0016] As an improvement, the connection mechanism includes a clamp head A1 and a clamp head B9. The clamp head A1 is arranged on the fixing frame 2 and is in a convex clamping shape. The clamp head B9 is arranged at one end of the strap 7. The clamp head B9 is provided with a connection hole 10, and the connection hole 10 can be clamped on the clamp head A1.
[0017] The strap 7 is provided with a strap length adjustment ring 8. The strap 7 is folded over the pin on the clamp B9 and then passes through the strap length adjustment ring 8 to adjust the length of the strap 7.
[0018] In actual use: the main body 4 is fixedly tied to the outside of the patient's thigh through the connecting mechanism. Patients of different sizes require different lengths of straps, and the main body is fixed by adjusting the length of the straps.
[0019] Compared with the prior art, the utility model has the advantages of simple structure, simple operation, precise positioning, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a three-dimensional structural schematic diagram I of the utility model.
[0021] Figure 2 This is a three-dimensional structural schematic diagram II of the utility model.
[0022] Figure 3 It is a main structural schematic diagram of the utility model.
[0023] Figure 4 It is a three-dimensional structural schematic diagram of the fixing frame of the utility model.
[0024] Figure 5 It is a schematic diagram of the main structure of the puncture needle positioning seat of the utility model.
[0025] Figure 6 It is a three-dimensional structural schematic diagram I of the puncture needle positioning seat of the utility model.
[0026] Figure 7 This is a three-dimensional structural schematic diagram II of the puncture needle positioning seat of the utility model.
[0027] Figure 8 Schematic diagram III of the three-dimensional structure of the puncture needle positioning seat of the utility model.
[0028] As shown in the figure: 1 is the clamp A, 2 is the fixing frame, 3 is the positioning pointer, 4 is the body, 5 is the positioning mechanism, 6 is the positioning hole, 7 is the strap, 8 is the strap length adjustment ring, 9 is the clamp B, 10 is the connecting hole, 11 is the positioning plate, 12 is the positioning plate locking mechanism, 13 is the positioning block, 14 is the guide groove, and 15 is the base. DETAILED DESCRIPTION
[0029] The above contents of the present invention are further described in detail below through embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] Example 1: Reference Figures 1 to 4 , is a schematic diagram of the structure of Example 1 of the utility model. This embodiment discloses an auxiliary injection device for extramuscular injection of tumor drugs, comprising a fixing frame 2 and a body 4. One end of the body 4 is connected to the fixing frame 2, and the other end is provided with a strap 7. The other end of the strap 7 can be connected to the fixing frame 2 through a connecting mechanism. Specifically, the strap 7 is connected to the clamp A1 of the fixing frame 2 through the connecting mechanism, and the body 4 is tied to the thigh of the patient. The surface of the body 4 has a plurality of positioning holes 6. The positioning holes 6 are kept at a fixed interval, and the intervals are The distance is greater than 2.5 cm, the positioning hole 6 can be embedded in the positioning mechanism 5, and the positioning mechanism 5 at least includes: a base 15, the shape of the base 15 is the same as the positioning hole 6, so that the base 15 can be embedded in the positioning hole 6, and the upper part of the base 15 is provided with an inclined guide groove 14, and the fixed frame 2 is provided with a positioning plate 11 and a positioning pointer 3. The positioning plate 11 can swing around the hinge part between it and the fixed frame 2, that is, the fixed frame 2 and the positioning plate 11 form an angle of 90°, and the positioning pointer 3 is arranged on the outside of the fixed frame 2.
[0031] During actual use: the patient sits with his legs bent at 90°. In actual use, if the patient's leg disease or other reasons limit his mobility and he cannot bend his legs by 90°, the angle formed by the fixing frame 2 and the positioning plate 11 is adjusted to be consistent with the angle formed by the patient's legs and the positioning plate locking mechanism 12 is used to fix it. The fixing frame 2 is placed in the middle of the upper surface of the thigh and the positioning plate 11 is stuck in the middle of the front side of the calf. The fixing frame 2 and the positioning plate 11 are both close to the skin surface. The positioning plate locking mechanism 12 is used to fix the angle between the fixing frame 2 and the positioning plate 11, and then the strap 7 is used to fix the body 4 on the outside of the patient's thigh. Then the base 15 is embedded in the selected positioning hole 6. Using the prepared syringe, the syringe needle is placed in the guide groove 14 and moved along the direction of the guide groove 14 toward the thigh to achieve subcutaneous injection.
[0032] A plurality of positioning holes 6 are provided on the body 4 , and the positioning holes 6 can be arranged on the surface of the body 4 in a certain regular pattern. The positioning holes 6 are through holes. After the base 15 is embedded in one of the positioning holes 6 , the syringe needle passes through the adjacent positioning hole 6 for subcutaneous injection.
[0033] After each injection, the used injection holes can be marked, and each positioning hole 6 can also be numbered, so that it is convenient to record which hole the injection was made from during subcutaneous injection, which is convenient for statistics and records.
[0034] The next time the injection is made, the patient takes the same body position, fixes the device in the same way, and selects the unused positioning hole for injection.
[0035] The connection mechanism includes a clamp head A1 and a clamp head B9. The clamp head A1 is arranged on the fixing frame 2 and is in a convex clamping shape. The clamp head B9 is arranged at one end of the strap 7. The clamp head B9 is provided with a connecting hole 10. The connecting hole 10 can be clamped on the clamp head A1.
[0036] The strap 7 is provided with a strap length adjustment ring 8. The strap 7 is folded over the pin on the clamp B9 and then passes through the strap length adjustment ring 8 to adjust the length of the strap 7.
[0037] In actual use: the main body 4 is fixedly tied to the outside of the patient's thigh through the connecting mechanism. Patients of different sizes require different lengths of straps, and the main body is fixed by adjusting the length of the straps.
[0038] Example 2: Reference Figures 5 to 8 , is a structural diagram of Example 2 of the utility model. Compared with Example 1, the difference of this embodiment is that: a positioning block 13 is further provided, the positioning block 13 is a triangular prism, and the positioning block 13 is arranged on the periphery of the base 15, and the guide groove 14 is arranged on the wedge-shaped surface of the positioning block 13.
[0039] In actual use: the positioning block 13 and the base 15 are a whole. After the base 15 is embedded in the positioning hole 6, the angle between the positioning block 13 and the adjacent positioning hole 6 is rotated and the device can be used.
Claims
1. A device for assisting injection of tumor drugs into extramuscular groups, characterized in that: The invention comprises a fixing frame (2) and a main body (4), wherein one end of the main body (4) is connected to the fixing frame (2), and the other end is provided with a strap (7), and the other end of the strap (7) can be connected to the fixing frame (2) through a connecting mechanism, so that the main body (4) is tied to the thigh of the patient, and the surface of the main body (4) has a plurality of positioning holes (6), and the positioning holes (6) can be embedded in the positioning mechanism (5). The positioning mechanism (5) at least comprises: a base (15), the shape of the base (15) being the same as that of the positioning hole (6) so that the base (15) can be embedded in the positioning hole (6), an upper portion of the base (15) being provided with an inclined guide groove (14), and a positioning plate (11) and a positioning pointer (3) being provided on the fixing frame (2). The positioning plate (11) is capable of swinging around a hinged portion between the positioning plate (11) and the fixing frame (2), that is, the fixing frame (2) and the positioning plate (11) form an angle, and the positioning pointer (3) is arranged on the outside of the fixing frame (2).
2. The device for assisting injection of tumor drugs into the extramuscular group according to claim 1, characterized in that: A positioning block (13) is also provided. The positioning block (13) is in the form of a triangular prism and is arranged on the periphery of the base (15). The guide groove (14) is arranged on the wedge-shaped surface of the positioning block (13).
3. The device for assisting the injection of tumor drugs into the extramuscular group according to claim 1, characterized in that: The guide groove (14) and the base (15) form an angle of 30°.
4. The device for assisting injection of tumor drugs into extramuscular groups according to claim 1, characterized in that: The connecting mechanism comprises a clamp head A (1) and a clamp head B (9), wherein the clamp head A (1) is arranged on a fixing frame (2) and is in a protruding clamping shape, and the clamp head B (9) is arranged at one end of a binding belt (7). The clamp head B (9) is provided with a connecting hole (10), and the connecting hole (10) can be clamped on the clamp head A (1).
5. The device for assisting injection of tumor drugs into extramuscular groups as claimed in claim 4, characterized in that: The strap (7) is provided with a strap length adjustment ring (8). The strap (7) is passed around the pin on the clamping head B (9), folded over, and then passed through the strap length adjustment ring (8) to adjust the length of the strap (7).