Marrow cavity transfusion and blood transfusion puncture outfit

Abstract

The utility model relates to the technical field of medical instruments, and discloses a marrow cavity transfusion and blood transfusion puncture outfit which comprises a puncture system, the puncture system comprises a hollow puncture needle and a positioning seat, one end of the puncture needle is arranged on the positioning seat, and the other end of the puncture needle is of a tip structure; the plugging system comprises a sealing rod and a locking seat, one end of the sealing rod is arranged on the locking seat, the other end of the sealing rod is inserted into the puncture needle, and the locking seat is detachably connected with the positioning seat; the power system comprises a gun body, a driving part and a transmission seat, the driving part is arranged in the gun body, the transmission seat is arranged on the gun body, the transmission seat is detachably connected with the positioning seat, and the driving part can drive the positioning seat to rotate through the transmission seat. And the puncture accuracy is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to a bone marrow cavity infusion and blood transfusion puncture device. Background Art

[0002] In emergency medical treatment, such as at a burn or other disaster site, when a patient's venous network collapses or closes, making it impossible to establish an intravenous route but requiring rapid access for fluid or blood transfusions, intraosseous infusion (IBI) is necessary. The IBI is rich in blood vessels, allowing medication and blood to be injected into the IBI via an IBI puncture device, rapidly circulating through the bloodstream to achieve therapeutic effects.

[0003] At present, there are some bone marrow cavity puncture instruments on the market, which generally include a needle part for puncture and a syringe part for fixing and guiding the needle. When in use, the operator inserts the needle into the corresponding position through the syringe, then removes the needle and connects the needle to the infusion device.

[0004] Regarding the above-mentioned related technologies, the puncture position needs to be accurate when puncturing the bone marrow cavity, and the operator needs to apply force when puncturing the needle of the related technical puncture instrument. This operation method is not only laborious, but may also affect the accuracy of the puncture. Utility Model Content

[0005] In order to facilitate puncturing the bone marrow cavity and improve the accuracy of puncture, the present application provides a bone marrow cavity infusion and blood transfusion puncture device.

[0006] The present application provides a bone marrow cavity infusion and blood transfusion puncture device, which adopts the following technical solution:

[0007] A bone marrow cavity infusion and blood transfusion puncture device, comprising:

[0008] The puncture system comprises a hollow puncture needle and a positioning seat, wherein one end of the puncture needle is arranged on the positioning seat and the other end of the puncture needle is a pointed structure;

[0009] The sealing system includes a sealing rod and a locking seat, wherein one end of the sealing rod is arranged on the locking seat, the other end of the sealing rod is inserted into the puncture needle, and the locking seat is detachably connected to the positioning seat;

[0010] The power system includes a gun body, a driving member and a transmission seat. The driving member is arranged in the gun body, the transmission seat is arranged on the gun body, and the transmission seat is detachably connected to the positioning seat. The driving member can drive the positioning seat to rotate through the transmission seat.

[0011] By adopting the above technical solution, the tip structure of the puncture needle is convenient for penetrating the bone marrow cavity, while the positioning seat provides stable support during the puncture process, ensuring the accuracy of the puncture direction. The sealing system achieves effective sealing of the inside of the puncture needle through the cooperation of the sealing rod and the locking seat; the sealing rod is inserted into the puncture needle to prevent the leakage of bone marrow fluid or other liquids, ensuring a sterile environment during the puncture process; the detachable connection design of the locking seat and the positioning seat facilitates the replacement of the sealing rod, improving the reusability and maintenance convenience of the equipment. The drive member drives the positioning seat to rotate through the transmission seat, and then drives the puncture needle to rotate. This design not only reduces the operating burden of medical staff, but also improves the efficiency and accuracy of puncture.

[0012] Optionally, a positioning groove is provided at one end of the positioning seat away from the puncture needle, and the positioning groove extends along the axis direction of the positioning seat. A slot for the positioning seat to be inserted is provided at one end of the transmission seat away from the gun body, and a positioning protrusion is provided on the side wall of the slot. When the positioning seat is inserted into the slot, the positioning protrusion is inserted into the positioning groove.

[0013] By adopting the above technical solution, the setting of the positioning groove and the positioning protrusion ensures the precise positioning and stable connection between the positioning seat and the transmission seat. This design prevents dislocation and shaking during the puncture process, improves the stability and safety of the puncture; at the same time, it also facilitates the disassembly between the positioning seat and the transmission seat.

[0014] Optionally, an outer side wall of the end of the positioning seat facing away from the puncture needle and an inner side wall of the end of the transmission seat facing away from the gun body are both provided with chamfers, and the positioning seat is inserted into the slot with interference fit.

[0015] By adopting the above technical solution and the interference fit method of chamfering, the stability of the transmission seat and the positioning seat can be improved.

[0016] Optionally, a connection groove for the locking seat to be inserted is formed at one end of the positioning seat away from the puncture needle, and the positioning seat is threadedly connected to the locking seat.

[0017] By adopting the above technical solution, the threaded connection design between the positioning seat and the locking seat provides reliable connection strength and sealing performance, and at the same time can achieve detachable matching between the locking seat and the positioning seat.

[0018] Optionally, the positioning seat includes a first base plate and a first outer ring and a first center column arranged on the first base plate, and the locking seat includes a second base plate and a second outer ring and a second center column arranged on the second base plate, the second outer ring can be inserted into the first outer ring, the second outer ring is threadedly connected to the first center column, the first center column is provided with a waterproof groove for the second center column to be inserted, the puncture needle is connected to the waterproof groove, and the sealing rod is arranged on the second center column.

[0019] By adopting the above technical solution and the design of the waterproof groove and the sealing rod, the sealing performance of the puncture needle is further enhanced.

[0020] Optionally, the inner diameter of the waterproof groove gradually increases in the direction away from the puncture needle, the second center column protrudes from the second outer ring, and the outer diameter of the second center column gradually decreases in the direction away from the second bottom plate.

[0021] By adopting the above technical solution, the gradual change design of the inner diameter of the waterproof groove and the gradual change design of the outer diameter of the second center column enable the sealing rod to fit more closely to the inner wall of the puncture needle, thereby improving the sealing effect.

[0022] Optionally, a force application groove is provided on the outer side wall of the second outer ring.

[0023] By adopting the above technical solution and providing the force application groove, it is convenient for medical personnel to apply force during operation, especially when rotating the locking seat or disassembling components.

[0024] Optionally, the driving member includes a rotating shaft, a power source for driving the rotating shaft to rotate, and a transmission shaft arranged on the side wall of the rotating shaft, and the end of the transmission shaft facing away from the rotating shaft is inserted into the transmission seat.

[0025] Optionally, a threaded hole is provided on the side wall of the rotating shaft, and an opening for the transmission shaft to pass through is provided on the transmission seat. The transmission shaft can pass through the opening and be threadedly connected to the rotating seat.

[0026] By adopting the above technical solution, the combined design of the transmission shaft and the threaded hole realizes a reliable connection and transmission between the transmission shaft and the transmission seat. This design not only improves the accuracy and stability of the transmission, but also facilitates the disassembly and maintenance of the transmission shaft.

[0027] Optionally, the gun body is provided with a forward button for driving the positioning seat to rotate forward, and a reverse button for driving the positioning seat to rotate reversely.

[0028] Optionally, the forward and reverse buttons are provided so that medical staff can flexibly control the rotation direction of the positioning seat according to needs.

[0029] In summary, this application has at least one of the following beneficial effects:

[0030] 1. The synergistic effect of the puncture system, blocking system and power system improves the accuracy and stability of puncture. At the same time, the power system drives the rotary drilling method to reduce the difficulty of puncture and improve the puncture efficiency.

[0031] 2. The sealing rod and locking seat design of the sealing system, as well as the cooperation between the waterproof groove and the sealing rod, effectively prevent the leakage and contamination of bone marrow fluid, ensuring a sterile environment during the puncture process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural diagram of an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the explosion structure of an embodiment of the present application;

[0034] Figure 3 It is a schematic cross-sectional structural diagram of an embodiment of the present application.

[0035] Explanation of the accompanying drawings: 1. Puncture system; 11. Puncture needle; 12. Positioning seat; 121. Positioning groove; 122. Connecting groove; 123. First base plate; 124. First outer ring; 125. First center column; 126. Waterproof groove; 2. Sealing system; 21. Sealing rod; 22. Locking seat; 221. Second base plate; 222. Second outer ring; 223. Second center column; 224. Force groove; 3. Power system; 31. Gun body; 311. Forward button; 312. Reverse button; 32. Driving member; 321. Rotating shaft; 322. Transmission shaft; 33. Transmission seat; 331. Positioning protrusion. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-3 This application is described in further detail.

[0037] The present application discloses a bone marrow cavity infusion and blood transfusion puncture device. Figure 1 and Figure 2 The blood transfusion puncture device includes a puncture system 1, a blocking system 2, and a power system 3. The puncture system 1 comprises a hollow puncture needle 11 and a positioning base 12. One end of the puncture needle 11 is fixed to the positioning base 12, and the other end is formed into a pointed structure to facilitate insertion into the bone marrow cavity. The side wall of the puncture needle 11 near the tip structure is symmetrically provided with liquid outlets for blood to flow out. The puncture needle 11 is preferably made of stainless steel, and the positioning base 12 is preferably made of polycarbonate.

[0038] Reference Figure 1 and Figure 2In this embodiment, the sealing system 2 includes a sealing rod 21 and a locking seat 22. One end of the sealing rod 21 is fixed to the locking seat 22, and the other end is inserted into the inner cavity of the puncture needle 11 in a tight fit, effectively sealing the puncture needle 11 and preventing blood spillage and infection during the puncture process. Accordingly, the sealing rod 21 is preferably made of stainless steel, and the locking seat 22 is preferably made of polycarbonate. The connection between the locking seat 22 and the positioning seat 12 is detachable. After the puncture is completed, the locking seat 22 and sealing rod 21 can be removed and the puncture needle 11 can be connected to the infusion system.

[0039] Reference Figure 1 and Figure 2 In this embodiment, the power system 3 comprises a gun body 31, a driving member 32, and a transmission base 33. The gun body 31 is shaped like a pistol for easy grip and control. The driving member 32 is disposed within the gun body 31. One end of the transmission base 33 is mounted on the gun body 31, and the other end is detachably connected to the positioning base 12. The driving member 32 can drive the transmission base 33 to rotate, which in turn drives the positioning base 12, thereby driving the puncture needle 11. After a successful puncture, the power system 3 can be removed by detaching the driving member 33 and the positioning base 12. This structure greatly improves operational convenience. Furthermore, the rotary puncture method helps reduce resistance during the puncture process, improving puncture efficiency.

[0040] Reference Figure 2 and Figure 3 In this embodiment, specifically, a positioning groove 121 is provided at the end of the positioning seat 12 away from the puncture needle 11. The positioning groove 121 is provided on the side wall and extends along the axis direction of the positioning seat 12, and multiple positioning grooves are provided along the circumference of the positioning seat 12. Correspondingly, a slot for the positioning seat 12 to be plugged into the end of the transmission seat 33 away from the wall is provided, and a positioning protrusion 331 is provided on the inner wall of the slot. When the positioning seat 12 is plugged into the positioning groove 121, the positioning protrusion 331 can be plugged into the positioning groove 121. Through the cooperation of the positioning protrusion 331 and the positioning groove 121, when the transmission seat 33 rotates, the positioning seat 12 can be driven to rotate; at the same time, due to the plug-in cooperation method, when the puncture needle 11 is punctured into place, the transmission seat 33 can be separated from the positioning seat 12 by sliding the gun body 31 backward.

[0041] Furthermore, in order to improve the stability during connection, a chamfer is added at the connection between the transmission seat 33 and the positioning seat 12, that is, a chamfer is provided on the outer wall of the end of the positioning seat 12 facing away from the puncture needle 11, and the inner wall of the end of the transmission seat 33 facing away from the gun body 31. At the same time, when the positioning seat 12 is inserted into the slot, the two are interference fit.

[0042] Reference Figure 2 and Figure 3In this embodiment, the locking seat 22 is disposed between the positioning seat 12 and the transmission seat 33. A connecting groove 122 for the locking seat 22 to be inserted into is defined on the end of the positioning seat 12 facing away from the puncture needle 11. The positioning seat 12 and the locking seat 22 are threadedly connected. Threads can be provided on the outer wall of the locking seat 22 and the inner wall of the corresponding positioning seat 12 for mating. To improve the sealing of the connection, the positioning seat 12 and the locking seat 22 are further plugged into each other.

[0043] Specifically, the positioning seat 12 includes a first base plate 123 and a first outer ring 124 and a first center column 125 integrally formed on the first base plate 123; the locking seat 22 includes a second base plate 221 and a second outer ring 222 and a second center column 223 integrally formed on the second base plate 221, wherein the inner diameter of the first outer ring 124 and the outer diameter of the second outer ring 222 are adapted to each other, the second outer ring 222 can be inserted into the first outer ring 124, and the inner side wall of the second outer ring 222 is threadedly connected to the outer side wall of the first center column 125; the end face of the first center column 125 is provided with a waterproof groove 126 for the second center column 223 to be inserted, the puncture needle 11 is connected to the waterproof groove 126, and the sealing rod 21 is fixed on the second center column 223. When the second center column 223 is inserted into the waterproof groove 126, the sealing rod 21 is inserted into the puncture needle 11. The double plug-in fit can improve the sealing performance of the plug-in joint between the puncture needle 11 and the sealing rod 21 .

[0044] Alternatively, the inner diameter of the waterproof groove 126 gradually increases in the direction away from the puncture needle 11, the second center column 223 protrudes from the second outer ring 222, and the outer diameter of the second center column 223 gradually decreases in the direction away from the second base plate 221. Therefore, when the second outer ring 222 is threadedly connected to the first center column 125, it can drive the second center column 223 to continuously insert into the first center column 125 and squeeze the inner wall of the first center column 125, which can further improve the sealing of the connection. In order to drive the locking seat 22 to rotate in the direction, a force-applying groove 224 is opened on the outer wall of the second outer ring 222. The force-applying groove 224 extends in the direction of the axis of the second outer ring 222 and is provided along the circumference of the second outer ring 222 to facilitate the rotation of the locking seat 22.

[0045] Reference Figure 2 and Figure 3In this embodiment, the driving member 32 includes a rotating base, a power source for driving the rotating shaft 321, and a transmission shaft 322 disposed on the side wall of the rotating shaft 321. Specifically, the power source can be a motor (not shown), the output end of which is connected to the rotating shaft 321. In other embodiments, a worm gear can be further provided to cooperate with the motor to control the rotating shaft 321 as needed. The end of the transmission shaft 322 facing away from the rotating shaft 321 is inserted into the transmission base 33. The power source drives the rotating shaft 321 to rotate, which in turn drives the transmission base 33 via the transmission shaft 322. The gun body 31 is provided with a forward button 311 and a reverse button 312 for controlling the power source. The forward button 311 can drive the positioning base 12 to rotate in the forward direction, while the reverse button 312 can drive the positioning base 12 to rotate in the reverse direction.

[0046] Reference Figure 2 and Figure 3 In an optional embodiment, to facilitate installation and removal of the transmission base 33, the transmission shaft 322 can be configured to be detachably connected. Specifically, the end of the transmission shaft 322 is provided with an external thread, the side wall of the rotating shaft 321 is provided with a threaded barrel, and the side wall of the transmission base is provided with an opening for the transmission to pass through.

[0047] The implementation principle of the bone marrow infusion and blood transfusion puncture device in the embodiment of the present application is as follows: when in use, first find the position of the patient's tibial tuberosity and mark the best puncture point; then fix the patient's leg with one hand and hold the blood transfusion puncture device with the other hand, align the puncture needle 11 in the puncture system 1 with the marked point, so that the puncture needle 11 is placed at 90 degrees to the bone surface, and press the forward button 311 of the power system 3. At this time, the transmission seat 33 of the power system 3 will drive the puncture system 1 to rotate forward, gently press the gun body 31, and control the puncture needle 11 to rotate slowly and gently downward to insert the needle. When the sense of blockage suddenly disappears, it indicates that it has passed through the bone cortex and entered the medullary cavity; at this time, you can hold the positioning seat 12 with one hand and move the gun body 31 backward with the other hand to remove the power system 3; then rotate the reverse locking seat 22 to remove the blocking system 2, and the infusion device can be connected to the puncture system 1 for infusion.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A bone marrow cavity infusion and blood transfusion puncture device, characterized by: include: A puncture system (1) comprises a puncture needle (11) with a hollow interior and a positioning seat (12), wherein one end of the puncture needle (11) is disposed on the positioning seat (12), and the other end of the puncture needle (11) is a pointed structure; A sealing system (2), comprising a sealing rod (21) and a locking seat (22), wherein one end of the sealing rod (21) is disposed on the locking seat (22), and the other end of the sealing rod (21) is inserted into the puncture needle (11), and the locking seat (22) is detachably connected to the positioning seat (12); A power system (3) includes a gun body (31), a driving member (32) and a transmission seat (33), wherein the driving member (32) is arranged in the gun body (31), the transmission seat (33) is arranged on the gun body (31), and the transmission seat (33) is detachably connected to the positioning seat (12), and the driving member (32) can drive the positioning seat (12) to rotate through the transmission seat (33).

2. A bone marrow cavity infusion and blood transfusion puncture device according to claim 1, characterized in that: The positioning seat (12) is provided with a positioning groove (121) at one end away from the puncture needle (11), and the positioning groove (121) extends along the axis direction of the positioning seat (12). The transmission seat (33) is provided with a slot for the positioning seat (12) to be inserted at one end away from the gun body (31), and a positioning protrusion (331) is provided on the side wall of the slot. When the positioning seat (12) is inserted into the slot, the positioning protrusion (331) is inserted into the positioning groove (121).

3. A bone marrow cavity infusion and blood transfusion puncture device according to claim 2, characterized in that: The outer side wall of the end of the positioning seat (12) facing away from the puncture needle (11) and the inner side wall of the end of the transmission seat (33) facing away from the gun body (31) are both provided with chamfers, and the positioning seat (12) is inserted into the slot with interference fit.

4. The bone marrow cavity infusion and blood transfusion puncture device according to claim 1, characterized in that: The end of the positioning seat (12) facing away from the puncture needle (11) is provided with a connection groove (122) for the locking seat (22) to be plugged in, and the positioning seat (12) is threadedly connected to the locking seat (22).

5. The bone marrow cavity infusion and blood transfusion puncture device according to claim 4, characterized in that: The positioning seat (12) includes a first base plate (123) and a first outer ring (124) and a first center column (125) arranged on the first base plate (123); the locking seat (22) includes a second base plate (221) and a second outer ring (222) and a second center column (223) arranged on the second base plate (221); the second outer ring (222) can be inserted into the first outer ring (124); the second outer ring (222) is threadedly connected to the first center column (125); the first center column (125) is provided with a waterproof groove (126) for the second center column (223) to be inserted; the puncture needle (11) is connected to the waterproof groove (126); and the sealing rod (21) is arranged on the second center column (223).

6. The bone marrow cavity infusion and blood transfusion puncture device according to claim 5, characterized in that: The inner diameter of the waterproof groove (126) gradually increases in a direction away from the puncture needle (11), the second center column (223) protrudes from the second outer ring (222), and the outer diameter of the second center column (223) gradually decreases in a direction away from the second bottom plate (221).

7. The bone marrow cavity infusion and blood transfusion puncture device according to claim 5, characterized in that: A force-applying groove (224) is provided on the outer side wall of the second outer ring (222).

8. The bone marrow cavity infusion and blood transfusion puncture device according to claim 1, characterized in that: The driving member (32) comprises a rotating shaft (321), a power source for driving the rotating shaft (321) to rotate, and a transmission shaft (322) arranged on a side wall of the rotating shaft (321), wherein one end of the transmission shaft (322) facing away from the rotating shaft (321) is inserted into the transmission seat (33).

9. The bone marrow cavity infusion and blood transfusion puncture device according to claim 8, characterized in that: A threaded hole is provided on the side wall of the rotating shaft (321), and an opening for the transmission shaft (322) to pass through is provided on the transmission seat (33). The transmission shaft (322) can pass through the opening and be threadedly connected to the rotating shaft (321).

10. The bone marrow cavity infusion and blood transfusion puncture device according to claim 1, characterized in that: The gun body (31) is provided with a forward rotation button (311) for driving the positioning seat (12) to rotate in a forward direction, and a reverse rotation button (312) for driving the positioning seat (12) to rotate in a reverse direction.

Images