Multi-functional knife for Tibetan blood-letting therapy
By designing a multi-functional knife with an elastic telescopic blade and a limiting mechanism, the problem of traditional knives being bulky has been solved, enabling convenient and flexible bloodletting operations. It is suitable for various bloodletting sites and reduces the burden on the operator.
Patent Information
- Application Number
- CN202520284003.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The knives used in traditional Tibetan bloodletting therapy are crudely manufactured, resulting in heavy handles that increase the burden on the operator and require carrying multiple knives.
Design a multi-functional cutting tool with a handle having an internal hollow mounting cavity, equipped with an elastic telescopic blade core and a limiting mechanism, which can adjust the blade length and change the blade type. The extension and retraction of the blade are controlled by a pressing head and a return mechanism, enabling convenient operation.
It reduces the weight and carrying burden of the knife, simplifies the operation process, improves flexibility and portability, is suitable for various bleeding sites, and reduces space occupation.
Smart Images
Figure CN224387505U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of medical device technology, specifically relating to a multifunctional knife for Tibetan medicine bloodletting therapy. Background Technology
[0002] External treatments in Tibetan medicine are a very important part of the theoretical and practical methods of Tibetan medicine, with a long history. External treatments utilize instruments and drugs to treat diseases from outside the body, and bloodletting is one of the commonly used treatment methods in Tibetan medicine.
[0003] Traditional bloodletting therapy uses different knives depending on the location of the bleeding. Therefore, Tibetan medicine practitioners often carry multiple knives of varying shapes during the procedure. However, these traditional knives are mostly handcrafted through family tradition or by individuals. Due to their outdated and crude manufacturing methods, each traditional knife has a heavy handle. Consequently, the practitioner needs to carry multiple heavy knives during each bloodletting session, increasing their workload. Utility Model Content
[0004] In view of the technical problem that the knives used in traditional bloodletting therapy are mostly crudely manufactured and have heavy handles, and that carrying multiple heavy knives increases the burden on the bloodletting operator, this utility model provides a multifunctional knife for Tibetan medicine bloodletting therapy.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A multifunctional knife for Tibetan medicine bloodletting therapy includes a handle with a hollow mounting cavity and an elastic telescopic blade core disposed within the mounting cavity. The blade core includes a pressing head passing through the top of the mounting cavity and protruding from it; a core rod located at the lower end of the pressing head and adjustable in length; a first spring passing through the core rod; a limiting mechanism on the core rod and having a limiting protrusion; and multiple blades of different shapes detachably connected to the lower end of the core rod. The handle has two spaced-apart blades, both communicating with the mounting cavity, for locking the limiting mechanism. The first limiting port and the second limiting port of the positioning protrusion are provided. A return mechanism connected to the outer wall of the handle is also provided outside the second limiting port. The return mechanism includes a return rod that abuts against the limiting protrusion. Pressing the pressing head drives the core rod to move towards the bottom of the mounting cavity to compress the first spring until the limiting protrusion moves from the first limiting port to the second limiting port to lock the blade body outside the mounting cavity. Pressing the return rod to abut against the limiting protrusion can control the first spring to return and drive the blade body to retract into the mounting cavity.
[0007] Furthermore, the core rod includes a first blade fixed to the lower end of the pressing head and a second blade screwed to the lower end of the first blade. The lower end of the first blade has an adjustment cavity with an internal thread on its inner wall, and the outer wall of the first end of the second blade has an external thread that is screwed into the internal thread. The second blade is screwed into the adjustment cavity through the external thread.
[0008] Furthermore, the limiting mechanism includes a recessed portion disposed on the first blade bar and recessed towards the interior of the first blade bar, and a spring piece connected to the recessed portion and whose shape is adapted to the outer shape of the recessed portion. The first end of the spring piece is fixedly connected to the recessed portion and partially protrudes outward from the recessed portion. The first end of the spring piece is located at the upper end of the first spring and abuts against the first spring. A circular platform is provided in the mounting cavity and abuts against the lower end of the first spring. The inner cavity of the circular platform allows the core rod to pass through. The second end of the spring piece is located at the lower end of the pressing head, and the limiting protrusion is fixedly connected to the outer wall of the spring piece and distributed adjacent to the second end.
[0009] Furthermore, the second end of the second tool holder has a flat portion with a connecting hole, and all the tool bodies also have a connecting hole. The tool bodies are connected to the second end of the second tool holder by screwing a connecting bolt into the connecting hole.
[0010] Furthermore, the return mechanism also includes a housing connected to the handle, a first inner cavity, a second inner cavity, and a third inner cavity disposed within the housing and connected in sequence, a partition fixed in the first inner cavity and having a through hole corresponding to the second limiting port, a second spring disposed in the second inner cavity, and a limiting frustum located on one side of the second spring and surrounding the outer periphery of the return rod. The inner diameters of the first inner cavity to the third inner cavity gradually decrease. The return rod passes through the through hole, the second inner cavity, and the third inner cavity, and the return rod is also fixedly connected to a return push head that protrudes outside the third inner cavity. The second spring is located between the partition and the limiting frustum, and the limiting frustum is located in the second inner cavity.
[0011] Furthermore, the knife handle includes a first knife barrel and a second knife barrel screwed to the lower end of the first knife barrel, and the lower end of the second knife barrel is screwed with a dust cover that seals the inlet / outlet port of the knife body.
[0012] Furthermore, the lower end of the first cutter barrel is adjacent to the annular platform, and the outer wall of the first cutter barrel is provided with anti-slip texture.
[0013] In summary, the beneficial effects of this utility model are as follows: First, by changing the blade body to a sharp, thin blade structure, the thickness of the blade for slicing the skin is thinner, making bloodletting easier and lighter. It also surpasses traditional blades in thickness, making it more flexible and portable. Second, the blade body screwed onto the flat part allows for the replacement of different blade types via connecting bolts, making it suitable for use on more different parts of the body. Multiple blades can be assembled together on a single handle, helping to eliminate the need to carry multiple bulky blades and reducing the burden on operators. This type of blade also facilitates the storage of bloodletting instruments, reducing space occupation. Third, slicing the skin is achieved by pressing the pressure head, with the extension or retraction of the blade body controlled by the compression or return of the first spring. The limiting mechanism locks the position of the movable core rod, and the bloodletting operation can be performed by aligning the second blade cylinder with the bloodletting site. The operation is simple and practical. Fourth, the flat section allows for switching of the blade shape according to actual conditions, while the adjustment cavity is used to adjust the extension length of the blade to control the cutting depth. The operation method is to press to pop out and cut the skin, and then press back to control the retraction of the blade. It is simple to operate, convenient to use, and has more diversified functions, with more functions that traditional knives cannot have. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a multifunctional knife for Tibetan medicine bloodletting therapy provided by this utility model.
[0015] Figure 2 yes Figure 1 A magnified view of part A in the middle.
[0016] Figure 3 This is a three-dimensional structural diagram of a multifunctional knife used in Tibetan medicine bloodletting therapy provided by this utility model.
[0017] Figure 4 This is a structural schematic diagram of another embodiment of the present invention.
[0018] Figure 5 This is a structural schematic diagram of another embodiment of the present utility model.
[0019] In the diagram, 100-tool handle, 110-first tool barrel, 111-circular platform, 112-second limiting port, 120-second tool barrel, 121-dust cover, 122-screwed barrel, 130-mounting cavity, 200-pressing head, 300-core rod, 310-first tool bar, 311-adjusting cavity, 320-second tool bar, 321-flat part, 400-first spring, 500-spring piece, 510-limiting protrusion, 600-tool body, 700-return mechanism, 710-return rod, 711-returning press head, 720-outer shell, 730-first inner cavity, 740-second inner cavity, 750-third inner cavity, 760-partition, 770-second spring, 780-limiting circular platform, 800-connecting bolt, 900-auxiliary pressing piece. Detailed Implementation
[0020] The present invention will be further illustrated below with reference to specific figures.
[0021] like Figure 1 and Figure 3 As shown, this utility model provides a multifunctional knife for Tibetan medicine bloodletting therapy, including a handle 100 with a hollow mounting cavity 130 inside and an elastic telescopic blade core disposed within the mounting cavity 130. The blade core includes a pressing head 200 passing through the top of the mounting cavity 130 and exposed outside the mounting cavity 130, a core rod 300 disposed at the lower end of the pressing head 200 and adjustable in length, a first spring 400 passing through the core rod 300, a limiting mechanism disposed on the core rod 300 and having a limiting protrusion 510, and a plurality of thin blade bodies 600 of different shapes detachably connected to the lower end of the core rod 300. The handle 100 has two spaced-apart first limiting ports and second limiting ports 112, both communicating with the mounting cavity 130 for locking the limiting protrusion 510. A return mechanism 700 connected to the outer wall of the handle 100 is also provided outside the second limiting port 112. The return mechanism 700 includes a return rod 710 that abuts against the limiting protrusion 510. Pressing the pressing head 200 drives the core rod 300 to move towards the bottom end of the mounting cavity 130, compressing the first spring 400 until the limiting protrusion 510 moves from the first limiting port to the second limiting port 112 to lock the blade 600 outside the mounting cavity 130. Pressing the return rod 710 against the limiting protrusion 510 controls the first spring 400 to return, causing the blade 600 to retract into the mounting cavity 130. Blades 600 with different tip shapes are thin bloodletting blades of different types. The blades 600 are sharp and thin, which can reduce their weight. Moreover, various blade types 600 can be disassembled and replaced according to the actual bloodletting site. Figure 4 and Figure 5As shown, in the other two embodiments, the flat portion 321 is equipped with blades 600 of different shapes according to actual needs. This is equivalent to having multiple blades 600 sharing a single handle 100, reducing the bulkiness of traditional instruments. The operator no longer needs to carry multiple blades, reducing the burden on the bloodletting operator. After the bloodletting operator presses the limiting protrusion 510 and the pressing head 200, the first spring 400 is compressed, and the core rod 300 moves, causing the limiting protrusion 510 to move from the first limiting port to the second limiting port 112, thus locking the moving core rod 300. In this state, the blade 600, after being pressed, pops out directly from the mounting cavity 130 of the handle 100. The elastic force allows the blade 600 to cut the bloodletting site, making the operation simple and convenient, releasing a small amount of blood to achieve the purpose of bloodletting treatment.
[0022] The knife handle 100 includes a first knife cylinder 110 and a second knife cylinder 120 screwed to the lower end of the first knife cylinder 110. The upper end of the second knife cylinder 120 is provided with a screw-in sleeve 122, and the first knife cylinder 110 has a corresponding screw-in groove to screw the screw-in sleeve 122 into it. The detachable first knife cylinder 110 and second knife cylinder 120 allow for easy exposure of the core rod 300 for replacement of the knife body 600. A dust cover 121 is screwed to the lower end of the second knife cylinder 120 to seal the inlet / outlet port of the knife body 600. The outer wall of the first knife cylinder 110 is provided with anti-slip texture, preferably a threaded texture, which not only provides anti-slip properties for easy gripping of the knife handle 100 during bloodletting but also simulates the texture of the outer circumference of a traditional knife handle 100, facilitating grip and maintaining a good feel during Tibetan medicine operations.
[0023] like Figure 4 As shown, in another embodiment, an elastic auxiliary pressing plate 900 is also connected to the outer wall of the first knife cylinder 110. The auxiliary pressing plate 900 has a protrusion that can abut against the limiting protrusion 510, making it easier to move the operating pressing core rod 300.
[0024] The core rod 300 includes a first cutter bar 310 fixedly connected to the lower end of the pressing head 200 and a second cutter bar 320 screwed to the lower end of the first cutter bar 310. The lower end of the first cutter bar 310 has an adjustment cavity 311 with an internal thread on its inner wall. The outer wall of the first end of the second cutter bar 320 has an external thread that screws into the internal thread. The second cutter bar 320 is screwed into the adjustment cavity 311 through the external thread. By rotating the second cutter body 600, the length of the core rod 300 can be adjusted, that is, the length of the cutter body 600 extending beyond the handle 100, so that different cutting depths can be adjusted according to different parts.
[0025] The second end of the second cutter bar 320 has a flat portion 321 with a connecting hole. All the cutter bodies 600 also have a connecting hole, and are connected to the second end of the second cutter bar 320 by screwing a connecting bolt 800 into the connecting hole. The screwed-on cutter bodies 600 are easy to assemble and disassemble, and convenient to replace. To reduce weight, the second cutter bar 320 can also be designed with a hollow internal structure.
[0026] The limiting mechanism includes a recessed portion disposed on the first blade 310 and recessed towards the interior of the first blade 310, and a spring connected to the recessed portion and whose shape is adapted to the shape of the recessed portion. The first end of the spring piece 500 is fixed to the recessed portion and partially protrudes outward from the recessed portion, and the first end of the spring piece 500 is located at the upper end of the first spring 400 and abuts against the first spring 400. A circular platform 111 is provided in the mounting cavity 130 and abuts against the lower end of the first spring 400. The circular platform 111 is adjacent to the lower end of the first blade cylinder 110, and the inner cavity of the circular platform 111 allows the core rod 300 to pass through. The second end of the spring piece 500 is located at the lower end of the pressing head 200, and the limiting protrusion 510 is fixed to the outer wall of the spring piece 500 and distributed near the second end. When the limiting protrusion 510 is located in the first limiting port, the blade 600 is located in the mounting cavity 130. When the limiting protrusion 510 is pressed, the pressing head 200 is also pressed at the same time. The second end of the spring piece 500 moves closer to the recess. At this time, the limiting protrusion 510 disengages from the first limiting port. Pressing the core rod 300 continues to drive the spring piece 500 to move. The first end of the spring piece 500, in conjunction with the annular platform 111, will compress the first spring 400. When the limiting protrusion 510 moves to the position of the second limiting port 112, it will be stuck in the second limiting port 112. In this state, the blade 600 extends out of the mounting cavity 130 and its position is locked.
[0027] like Figure 2As shown, the return mechanism 700 further includes a housing 720 connected to the tool holder 100, a first inner cavity 730, a second inner cavity 740, and a third inner cavity 750 disposed within the housing 720 and connected in sequence, a partition 760 fixed in the first inner cavity 730 and having a through hole corresponding to the second limiting port 112, a second spring 770 disposed in the second inner cavity 740, and a limiting frustum 780 located on one side of the second spring 770 and surrounding the outer periphery of the return rod 710. The inner diameters of the first inner cavity 730 to the third inner cavity 750 gradually decrease, and the return rod 710 passes through the through hole, the second inner cavity 740, and the third inner cavity 750. The return rod 710 is also fixedly connected to a return push head 711 exposed outside the third inner cavity 750. The second spring 770 is located between the partition 760 and the limiting frustum 780, and the limiting frustum 780 is located in the second inner cavity 740. When the blade body 600 needs to retract into the handle 100, press the return push head 711, and use the return rod 710 to press the limiting protrusion 510. At this time, the spring piece 500 moves closer to the recessed part, and the compressed first spring 400 returns to its original position, driving the blade body 600 to retract into the mounting cavity 130. The dust cover 121 is screwed on to close the port. The method of returning the blade body 600 is convenient, quick, and simple to operate.
[0028] Firstly, this knife features a thinner, sharper blade (600) for slicing the skin, making bloodletting easier and lighter. Its thinner blade design surpasses traditional knives, making it more flexible and portable. Secondly, the blade (600) screwed onto the flat section (321) allows for interchangeable blade types via bolts (800), making it suitable for various body parts. Multiple blades (600) can be mounted on a single handle (100), reducing the burden on operators and simplifying the storage of bloodletting instruments. Thirdly, slicing the skin is controlled by pressing the pressure head (200), with the extension or retraction of the blade (600) controlled by the compression or return of the first spring (400). A limiting mechanism locks the movable core rod (300) in place. Bloodletting can then be performed by aligning the second blade cylinder (120) with the bloodletting site, making the operation simple and practical. Fourth, the flat part 321 can switch the blade type of the blade body 600 according to the actual situation, while the adjustment cavity 311 is used to adjust the extension length of the blade body 600 to control the cutting depth. The operation method is to press to pop out and cut the skin, and then press the return head 711 to control the retraction of the blade body 600. The operation is simple, convenient, and more diversified, with more functions that traditional knives cannot have.
[0029] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.
Claims
1. A multi-functional knife for Tibetan medicine bloodletting therapy, characterized in that: The device includes a knife handle with a hollow mounting cavity and an elastic telescopic blade core disposed within the mounting cavity. The blade core includes a pressing head that passes through the top of the mounting cavity and protrudes from the mounting cavity, a core rod disposed at the lower end of the pressing head and adjustable in length, a first spring through which the core rod passes, a limiting mechanism disposed on the core rod and having a limiting protrusion, and multiple blades of different shapes detachably connected to the lower end of the core rod. The knife handle has two spaced-apart first limiting mechanisms, both communicating with the mounting cavity, for locking the limiting protrusion. The device includes a first limiting port and a second limiting port. A return mechanism connected to the outer wall of the handle is also provided outside the second limiting port. The return mechanism includes a return rod that abuts against the limiting protrusion. Pressing the pressing head drives the core rod to move towards the bottom of the mounting cavity, compressing the first spring until the limiting protrusion moves from the first limiting port to the second limiting port to lock the blade body outside the mounting cavity. Pressing the return rod against the limiting protrusion controls the first spring to return, causing the blade body to retract into the mounting cavity.
2. The multifunctional knife for Tibetan medicine bloodletting therapy according to claim 1, characterized in that: The core rod includes a first blade fixed to the lower end of the pressing head and a second blade screwed to the lower end of the first blade. The lower end of the first blade has an adjustment cavity with an internal thread on its inner wall. The outer wall of the first end of the second blade has an external thread that is screwed into the internal thread. The second blade is screwed into the adjustment cavity through the external thread.
3. A multifunctional knife for Tibetan medicine bloodletting therapy according to claim 2, characterized in that: The second end of the second tool holder has a flat portion with a connecting hole. All the tool bodies also have a connecting hole. The tool bodies are connected to the second end of the second tool holder by screwing a connecting bolt into the connecting hole.
4. A multifunctional knife for Tibetan medicine bloodletting therapy according to claim 2, characterized in that: The limiting mechanism includes a recessed portion disposed on the first blade bar and recessed towards the interior of the first blade bar, and a spring piece connected to the recessed portion and whose shape is adapted to the outer shape of the recessed portion. The first end of the spring piece is fixedly connected to the recessed portion and partially protrudes outward from the recessed portion. The first end of the spring piece is located at the upper end of the first spring and abuts against the first spring. A circular platform is provided in the mounting cavity and abuts against the lower end of the first spring. The inner cavity of the circular platform allows the core rod to pass through. The second end of the spring piece is located at the lower end of the pressing head, and the limiting protrusion is fixedly connected to the outer wall of the spring piece and distributed adjacent to the second end.
5. A multifunctional knife for Tibetan medicine bloodletting therapy according to claim 4, characterized in that: The return mechanism further includes a housing connected to the handle, a first inner cavity, a second inner cavity, and a third inner cavity disposed within the housing and connected in sequence, a partition fixed in the first inner cavity and having a through hole corresponding to the second limiting port, a second spring disposed in the second inner cavity, and a limiting frustum located on one side of the second spring and surrounding the outer periphery of the return rod. The inner diameters of the first inner cavity to the third inner cavity gradually decrease. The return rod passes through the through hole, the second inner cavity, and the third inner cavity, and the return rod is also fixedly connected to a return push head exposed outside the third inner cavity. The second spring is located between the partition and the limiting frustum, and the limiting frustum is located in the second inner cavity.
6. A multifunctional knife for Tibetan medicine bloodletting therapy according to claim 5, characterized in that: The knife handle includes a first knife barrel and a second knife barrel screwed to the lower end of the first knife barrel. The lower end of the second knife barrel is screwed with a dust cover that seals the inlet / outlet port of the knife body.
7. A multifunctional knife for Tibetan medicine bloodletting therapy according to claim 6, characterized in that: The lower end of the first cutter barrel is adjacent to the annular platform, and the outer wall of the first cutter barrel is provided with anti-slip texture.