Depth-adjustable blood-letting needle for livestock veterinarian

Abstract

This invention discloses a depth-adjustable bloodletting needle for livestock veterinary use in the field of veterinary instruments. By designing the bloodletting pen and replaceable needle into a modular, separate structure, the replaceable needle can be replaced promptly after bloodletting the livestock, avoiding the reuse of a single prism needle and reducing the risk of cross-contamination. The prism needle inside the used replaceable needle is fixed together with the cross, which prevents the prism needle from being exposed during subsequent handling and processing, thus reducing the risk of secondary accidents. It also prevents users from reusing the replaceable needle, further reducing the risk of cross-infection. At the same time, the laser emission unit and photosensitive unit work together to more precisely control the extension distance of the prism needle, making the bloodletting process more accurate.

Description

Technical Field

[0001] This invention relates to the field of veterinary instruments, and in particular to a depth-adjustable bloodletting needle for animal husbandry and veterinary medicine. Background Technology

[0002] Veterinary bloodletting needles are specialized needles used in traditional Chinese veterinary clinical practice for bloodletting therapy. They are commonly shaped as three-edged needles or wide needles. By puncturing specific acupoints or superficial blood vessels on the animal's body surface, a suitable amount of blood is released to achieve the effects of purging heat and detoxifying, promoting blood circulation and reducing swelling, and clearing the meridians. They are mostly used to treat heatstroke, febrile diseases, pain, and stagnation-related diseases. They can also be used as a health care method to prevent some febrile diseases. The operation must be performed by a professional veterinarian according to the standard procedure.

[0003] The utility model with announcement number CN215458256U discloses a bloodletting device with adjustable needle puncture depth. A positioning block is set inside the syringe, and the bloodletting needle passes through the positioning block. The positioning block is driven to move by a driving component, and the length of the bloodletting needle extending out of the positioning block can be adjusted. This realizes the adjustment of the bloodletting needle puncture depth by the bloodletting device and enhances the accuracy of bloodletting needle puncture.

[0004] Meanwhile, a utility model with announcement number CN201921613388.7 discloses a bloodletting needle for animal husbandry and veterinary medicine. The needle can be retracted and adjusted by a screw-driven connection structure, which can also adjust the insertion depth of bloodletting at acupoints in animal husbandry. The overall operation is simple and labor-saving, and it is worth promoting in the current market.

[0005] In existing technologies, adjusting the depth of the puncture needle to control the puncture depth and thus enhance the accuracy of the puncture is a widely adopted basic technique. However, in actual operation, multiple livestock can usually be treated with continuous bloodletting without changing the needle. Therefore, if the above-mentioned non-standard bloodletting operation occurs, it is easy to cause cross-infection among multiple livestock and further aggravate the condition of the livestock. Summary of the Invention

[0006] The core of this invention lies in designing the bloodletting pen and the replaceable needle into a modular, separate structure. After bleeding livestock, the replaceable needle can be replaced in a timely manner, avoiding the phenomenon of using a single triangular needle multiple times and reducing the risk of cross-contamination.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A depth-adjustable bloodletting needle for animal husbandry and veterinary use includes a matching bloodletting pen and a replaceable needle. The bloodletting pen and the replaceable needle are threaded together. The bloodletting pen includes a pen barrel. Multiple electric push rods are fixedly connected to the inner wall of the pen barrel near the replaceable needle. A stop ring is slidably connected inside the pen barrel. The stop ring is fixedly connected to the telescopic ends of the multiple electric push rods. The stop ring includes a ring body. An electromagnetic ring is fixedly connected to the upper end of the ring body and is embedded in the upper surface of the ring body. A power post is inserted into the stop ring. The power post includes a post body. A wing is fixedly connected to the upper end of the post body. A power magnetic ring is fixedly connected to the lower end of the wing. A compression spring is fixedly connected between the wing and the inner wall of the pen barrel. The lower end of the post body extends into the replaceable needle.

[0009] The replaceable needle includes a housing with a storage groove inside. A cross is fixedly connected to the side wall of the storage groove, and a needle base is fixedly connected inside the cross. A triangular needle is fixedly connected to the lower end of the needle base. Multiple fracture grooves are carved on the cross, all located on the side of the cross away from the needle base. An adsorption magnet is fixedly connected to the lower end of the needle base, and the needle base is made of magnetic metal material. The adsorption magnet attracts the needle base. By designing the bloodletting pen and the replaceable needle into a modular, separate structure, the replaceable needle can be replaced promptly after bloodletting livestock, avoiding the phenomenon of using the same triangular needle multiple times and reducing the risk of cross-contamination.

[0010] Furthermore, an operating part is fixedly connected to the side wall of the pen barrel, and an integrated part is threadedly connected to the end of the pen barrel away from the replaceable needle.

[0011] Furthermore, after the electromagnetic ring is activated and de-energized for 5-10 seconds, the power is switched back on. The output power of the electromagnetic ring slowly increases, and the attraction between the magnetic block and the needle holder slowly pulls the triangular needle out of the animal's body, completing the bleeding process.

[0012] Furthermore, the depth of the fracture groove is less than one-quarter of the thickness of the cross, reducing the impact on the structural strength of the cross and making the replaceable needle less likely to be accidentally activated by the power pile.

[0013] Furthermore, a fixing pad is fixedly connected to the upper inner wall of the storage slot. The fixing pad is filled with an air-hardening gel material, preferably 502 glue. A piercing device is fixedly connected to the upper end of the cross. The air-hardening gel material flows out and glues the fixing pad to the cross, so that the discarded replacement needle is not easily exposed during subsequent handling and processing, and is less likely to cause secondary damage.

[0014] Furthermore, the puncture device has a hollow structure, and a liquid outlet is cut at the end of the puncture device near the cross, which makes it less likely that the puncture device and the fixing pad will be too tightly bonded, preventing the air-hardening gel material from flowing out.

[0015] Furthermore, the upper part of the cross has a frosted surface, which increases the bonding strength between the cross and the fixing pad, making the cross less likely to fall off and less likely to cause secondary injuries.

[0016] Meanwhile, multiple photosensitive units are fixedly connected to the inner wall of the pen barrel, and multiple laser emitting units that match the positions of the photosensitive units are fixedly connected to the side wall of the ring. By using the cooperation of the laser emitting units and the photosensitive units, the extension distance of the triangular needle can be more precisely controlled, which is suitable for working in high-risk positions of livestock, making the bleeding work more accurate.

[0017] Compared with the prior art, the advantages of this invention are:

[0018] This solution designs the bloodletting pen and replacement needles into a modular, separate structure. After bleeding livestock, the replacement needles are replaced promptly, avoiding the reuse of a single prism needle and minimizing cross-contamination. The prism needle inside the used replacement needle is secured along with the cross, preventing it from being exposed during subsequent handling and processing, thus reducing the risk of secondary accidents. Furthermore, it prevents users from reusing the replacement needles, further reducing the risk of cross-infection.

[0019] At the same time, by utilizing the combination of the laser emitting unit and the photosensitive unit, the extension distance of the three-edged needle can be more precisely controlled, making the bloodletting process more accurate. It is less likely that the three-edged needle will penetrate too deeply, thus reducing the risk of excessive blood loss that could threaten the lives of livestock. At the same time, it is also less likely that the needle will penetrate too shallowly, thus minimizing the impact on the bloodletting effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the bloodletting needle for animal husbandry and veterinary medicine of the present invention;

[0021] Figure 2 This is a schematic diagram of the main structure of the bloodletting needle for animal husbandry and veterinary medicine of the present invention;

[0022] Figure 3 This is a schematic cross-sectional view of the bloodletting needle for animal husbandry and veterinary medicine of the present invention.

[0023] Figure 4 for Figure 3 Schematic diagram of the structure at point A;

[0024] Figure 5 for Figure 3 Schematic diagram of the structure at point B;

[0025] Figure 6 This is a schematic diagram of the bloodletting pen of the present invention;

[0026] Figure 7 This is a schematic diagram of the replaceable needle of the present invention;

[0027] Figure 8 This is a cross-sectional structural diagram of the replaceable needle of the present invention;

[0028] Figure 9 for Figure 7 Schematic diagram of the structure at point C;

[0029] Figure 10 This is a schematic diagram of the stop ring of the present invention.

[0030] Explanation of the labels in the diagram:

[0031] 1. Bleeding pen, 101. Pen barrel, 102. Integrated part, 103. Operating part, 2. Replaceable needle, 201. Cover shell, 202. Fixing pad, 203. Cross, 204. Fracture groove, 205. Piercer, 206. Needle seat, 207. Triangular needle, 208. Liquid outlet, 3. Power pile, 301. Pile body, 302. Power magnetic ring, 303. Adsorption magnetic block, 4. Electric push rod, 5. Stop ring, 501. Ring body, 502. Electromagnetic ring, 503. Laser emitting unit, 6. Compression spring, 7. Photosensitive unit. Detailed Implementation

[0032] The technical solutions will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0033] First implementation method:

[0034] Please see Figure 1 - Figure 4 and Figure 10 A depth-adjustable bloodletting needle for animal husbandry and veterinary use includes a matching bloodletting pen 1 and a replaceable needle 2, with the bloodletting pen 1 and the replaceable needle 2 being threadedly connected. The bloodletting pen 1 includes a pen barrel 101, with multiple electric push rods 4 fixedly connected to the inner wall of the pen barrel 101 near the replaceable needle 2. A stop ring 5 is slidably connected inside the pen barrel 101, and the stop ring 5 is fixedly connected to the telescopic ends of the multiple electric push rods 4. The stop ring 5 includes a ring body 501, with an electromagnetic ring 502 fixedly connected to the upper end of the ring body 501, and the electromagnetic ring 502 is embedded in the upper surface of the ring body 501. A power stake 3 is inserted into the stop ring 5, and the power stake 3 includes a stake body 301, with a wing fixedly connected to the upper end of the stake body 301, and a power magnetic ring 302 fixedly connected to the lower end of the wing. A compression spring 6 is fixedly connected between the wing and the upper inner wall of the pen barrel 101. The lower end of the stake body 301 extends into the replaceable needle 2.

[0035] The replaceable needle 2 includes a housing 201, a storage groove is carved inside the housing 201, a cross 203 is fixedly connected to the side wall of the storage groove, a needle base 206 is fixedly connected inside the cross 203, a triangular needle 207 is fixedly connected to the lower end of the needle base 206, multiple fracture grooves 204 are carved on the cross 203, all of the multiple fracture grooves 204 are located on the side of the cross 203 away from the needle base 206, an adsorption magnetic block 303 is fixedly connected to the lower end of the stake 301, and the needle base 206 is made of magnetic metal material, and the adsorption magnetic block 303 is attracted to the needle base 206.

[0036] An operating part 103 is fixedly connected to the side wall of the pen barrel 101. An integrated part 102 is threadedly connected to the end of the pen barrel 101 away from the replaceable needle 2. The integrated part 102 integrates a processing terminal, a control terminal, and a power supply unit, which is used to control the operation of the electrical units (including but not limited to the electric push rod 4) in the bloodletting pen 1, so that the bloodletting needle can meet the usage requirements and provide power to the electrical units. The existence of the operating part 103 allows the operator to directly input operating commands to control the normal operation of the bloodletting needle. The power supply unit can be charged or directly replaced (such as the battery compartment) via wired or wireless means. Finally, the specific connection method between the bloodletting pen 1 and its internal auxiliary structures is a well-known technology to those skilled in the art. Those skilled in the art can make reasonable arrangements according to actual work needs to meet the usage requirements.

[0037] In this embodiment, the replaceable needle 2 adopts a replaceable design. Before each bloodletting operation, the replaceable needle 2 is first installed on the bloodletting pen 1. During the installation of the replaceable needle 2, the needle seat 206 will press against the power post 3 and push the power post 3 to move in the direction of the integration part 102. After the replaceable needle 2 is completely fixed, the position of the stop ring 5 is adjusted by the integration part 102 to control the limit movement distance of the power post 3 when it is activated, thereby controlling the movement distance of the triangular needle 207.

[0038] After the position adjustment of the stop ring 5 is completed, the electromagnetic ring 502 is activated. The magnetic force generated by the electromagnetic ring 502 causes the power magnetic ring 302 to move away from the electromagnetic ring 502, so that the power stake 3 moves further towards the integration part 102 to store energy for the compression spring 6. At this time, the user can hold the bleeding pen 1, place the replaceable needle 2 against the position where the animal needs to be bled, and adjust the angle of the bleeding pen 1 to control the needle angle. After the angle adjustment is completed, the electromagnetic ring 502 is de-energized, and the magnetic force of the electromagnetic ring 502 and the power magnetic ring 302 disappears. At this time, the compression spring 6, which is in a compressed state, will push the power stake 3 to move towards the replaceable needle 2 and collide with the cross 203, causing the cross 203 to break along the fracture groove 204. Afterwards, the cross 203 continues to move under the action of the power stake 3 until the triangular needle 207 extends out from the replaceable needle 2 and pierces the corresponding position of the animal for bleeding.

[0039] Five seconds after the electromagnetic ring 502 is de-energized, the power is then restored to the electromagnetic ring 502. This time, the output power of the electromagnetic ring 502 slowly increases, causing the power pile 3 to slowly move towards the integrated part 102. The attraction between the magnetic block 303 and the needle holder 206 will slowly pull the triangular needle 207 out of the animal's body, completing the bloodletting process.

[0040] The depth of the fracture groove 204 is less than one-quarter of the thickness of the cross 203, which reduces the impact on the structural strength of the cross 203 and makes it less likely for the replacement needle 2 to be accidentally touched by the power pile 3. The chiseling of the fracture groove 204 is only used to control the fracture position of the cross 203, so that the piercing device 205 is retained on the part of the cross 203 that moves together with the needle seat 206.

[0041] Please see Figure 5-9A fixing pad 202 is fixedly connected to the upper inner wall of the storage slot. The fixing pad 202 is filled with an air-hardening gel material, preferably 502 glue. A piercing device 205 is fixedly connected to the upper end of the cross 203. When the power pile 3 moves the cross 203 upward, the piercing device 205 pierces the fixing pad 202, causing the air-hardening gel material to flow out and adhere the fixing pad 202 to the cross 203. This makes it difficult for the discarded replacement needle 2 to be exposed during subsequent handling and processing, thus preventing secondary damage. The piercing device 205 has a hollow structure and is located near the cross 2. One end of the cross 203 has a liquid outlet 208. After the puncturer 205 punctures the fixing pad 202, the air-hardening gel material will flow out through the puncturer 205 and the liquid outlet 208 and cover the surface of the cross 203. This prevents the puncturer 205 from being too tightly bonded to the fixing pad 202, which would prevent the air-hardening gel material from flowing out. The upper end of the cross 203 has a frosted surface, which further increases the contact area between the air-hardening gel material and the cross 203, and increases the bonding strength between the cross 203 and the fixing pad 202, making the cross 203 less likely to fall off later and less likely to trigger a secondary injury accident.

[0042] In this embodiment, the bloodletting pen 1 and the replaceable needle 2 are designed as a modular, separate structure. After the bleeding of the livestock, the replaceable needle 2 is replaced in time to avoid the phenomenon of using the same triangular needle 207 multiple times, which is less likely to cause cross-contamination. The triangular needle 207 inside the used replaceable needle 2 is fixed together with the cross 203. On the one hand, it is not easy for the triangular needle 207 to be exposed during subsequent handling and processing, which is less likely to cause secondary accidents. On the other hand, it can also prevent users from reusing the replaceable needle 2, further reducing the risk of cross-infection.

[0043] Second implementation method:

[0044] Please see Figure 3 - Figure 4 Multiple photosensitive units 7 are fixedly connected to the inner wall of the pen barrel 101, and multiple laser emitting units 503 that match the positions of the photosensitive units 7 are fixedly connected to the side wall of the ring body 501.

[0045] As the number of uses of the bloodletting pen 1 increases, the stop ring 5 and the electric push rod 4 will be frequently impacted by the power pile 3. During this process, stress fatigue will occur in the electric push rod 4, affecting its adjustment accuracy. The laser emitting unit 503 is designed to automatically check the position of the stop ring 5: the photosensitive unit 7 will determine the specific position of the stop ring 5 based on the laser irradiation position it receives, and then determine the accuracy impact on the electric push rod 4, and adjust the electric push rod 4 accordingly.

[0046] When the bloodletting pen 1 is in working condition, multiple electric push rods 4 extend to a predetermined length. However, if the laser irradiation position received by the photosensitive unit 7 does not reach the preset point, the electric push rods 4 will be controlled to extend or shorten according to the laser irradiation position received by the photosensitive unit 7, so that the laser irradiation point reaches the preset position.

[0047] When the bloodletting pen 1 is not in working condition, the user can periodically activate its detection mode: taking the lowest position that the stop ring 5 can be in as the origin, control commands are randomly sent to multiple electric push rods 4 to control the extension or retraction of the electric push rods 4. The distance of the push rods 4 relative to the origin position is recorded as L1, and the distance between the actual position reached by the stop ring 5 and the origin position is recorded as L2. Multiple sets of detections are performed, and the detection data is fitted to achieve the following:

[0048] L2=KL1;

[0049] Where K is the fatigue parameter of the current electric actuator 4, which can be any real number (at this time, the error caused by the fatigue of the electric actuator 4 changes linearly), or it can be an equation related to or unrelated to L1 (such as satisfying the change characteristics of an exponential or logarithmic curve). The value of K is retained. In the subsequent use of the bloodletting pen 1, the integration unit 102 issues changes to the extension or shortening command of the electric actuator 4 according to the value of K, so that the electric actuator 4 can move to the position closest to the target in one go, reducing the subsequent adjustment time and improving the efficiency of the bloodletting needle.

[0050] When the data of L1 and L2 cannot be matched at all, it indicates that there is an irregular systematic error in the electric actuator 4, and the internal structure of the pen barrel 101 needs to be maintained and replaced by disassembling the integration unit 102.

[0051] Compared to the first implementation method, in this implementation method, the extension distance of the triangular needle 207 is more precisely controlled by the cooperation of the laser emitting unit 503 and the photosensitive unit 7. This is suitable for bleeding work that requires high-risk positions of livestock, making the bleeding work more precise and less likely to cause excessive bleeding that threatens the life of livestock due to the triangular needle 207 penetrating too deeply. At the same time, it is also less likely to penetrate too shallowly, which will not affect the bleeding effect.

[0052] However, the introduction of the photosensitive unit 7 and the laser emitting unit 503, as well as their corresponding control and operation programs, increases the cost of using the bloodletting pen 1. Therefore, those skilled in the art need to make a reasonable selection between the two implementation methods of the bloodletting pen 1 based on the actual situation.

[0053] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A depth-adjustable bloodletting needle for animal husbandry and veterinary use, comprising a matching bloodletting pen (1) and a replaceable needle (2), wherein the bloodletting pen (1) and the replaceable needle (2) are threadedly connected, characterized in that: The bloodletting pen (1) includes a pen barrel (101). Multiple electric push rods (4) are fixedly connected to the inner wall of the pen barrel (101) near the replaceable needle tip (2). A stop ring (5) is slidably connected inside the pen barrel (101), and the stop ring (5) is fixedly connected to the telescopic ends of the multiple electric push rods (4). The stop ring (5) includes a ring body (501), and an electromagnetic ring (502) is fixedly connected to the upper end of the ring body (501). The ring (502) is embedded in the upper surface of the ring body (501). A power pile (3) is inserted into the stop ring (5). The power pile (3) includes a pile body (301). A wing is fixedly connected to the upper end of the pile body (301). A power magnetic ring (302) is fixedly connected to the lower end of the wing. A compression spring (6) is fixedly connected between the wing and the inner wall of the pen barrel (101). The lower end of the pile body (301) extends into the replaceable needle (2). The replaceable needle (2) includes a cover shell (201), a storage groove is carved inside the cover shell (201), a cross (203) is fixedly connected to the side wall of the storage groove, a needle seat (206) is fixedly connected inside the cross (203), a triangular needle (207) is fixedly connected to the lower end of the needle seat (206), a plurality of fracture grooves (204) are carved on the cross (203), the plurality of fracture grooves (204) are all located on the side of the cross (203) away from the needle seat (206), an adsorption magnetic block (303) is fixedly connected to the lower end of the stake body (301), and the needle seat (206) is made of magnetic metal material, the adsorption magnetic block (303) is attracted to the needle seat (206).

2. The bloodletting needle for animal husbandry and veterinary medicine with adjustable depth according to claim 1, characterized in that: An operating part (103) is fixedly connected to the side wall of the pen (101), and an integrated part (102) is threadedly connected to the end of the pen (101) away from the replaceable needle (2).

3. The bloodletting needle for animal husbandry and veterinary medicine with adjustable depth according to claim 1, characterized in that: After the electromagnetic ring (502) is started and powered off for 5-10 seconds, the power supply to the electromagnetic ring (502) is connected, and the output power of the electromagnetic ring (502) slowly increases.

4. The bloodletting needle for animal husbandry and veterinary medicine with adjustable depth according to claim 1, characterized in that: The depth of the fracture groove (204) is less than one-quarter of the thickness of the cross (203).

5. The depth-adjustable bloodletting needle for animal husbandry and veterinary medicine according to claim 1, characterized in that: The upper inner wall of the storage slot is fixedly connected to a fixing pad (202), the fixing pad (202) is filled with an air-hardening gel material, and the upper end of the cross (203) is fixedly connected to a piercing device (205).

6. The depth-adjustable bloodletting needle for animal husbandry and veterinary medicine according to claim 5, characterized in that: The piercing device (205) is a hollow structure, and a liquid outlet (208) is drilled at one end of the piercing device (205) near the cross (203).

7. The depth-adjustable bloodletting needle for animal husbandry and veterinary medicine according to claim 1, characterized in that: The upper part of the cross (203) has a frosted surface.

8. The depth-adjustable bloodletting needle for animal husbandry and veterinary medicine according to claim 1, characterized in that: The inner wall of the pen barrel (101) is fixedly connected to multiple photosensitive units (7), and the side wall of the ring body (501) is fixedly connected to multiple laser emitting units (503) that match the positions of the photosensitive units (7).

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