Injection positioning device for endocrine clinic

Abstract

The invention relates to the field of injection positioning devices, and particularly discloses an injection positioning device for endocrine clinic. By arranging the base plate, the clamping assembly, the locking piece and the adjusting clamping assembly, when arm medicine intravenous injection operation is conducted on an endocrine patient with unstable limbs, the arm of the patient can be clamped to the base plate through the clamping assembly, rotation of the clamping assembly is limited through the locking piece, and then movement of the arm of the patient is limited; then the gap between the outer clamping ring and the arm of the patient is adjusted by adjusting the clamping assembly, the degree of freedom of the arm of the patient is further limited, the arm of the patient is firmly clamped to the base plate, and the situation that when medical staff insert the injection needle, the arm of the patient shakes, and consequently the injection needle cannot be accurately inserted into the arm vein is avoided; the device can firmly clamp arms of patients with different arm circumferences, the application range is wider, and application and popularization are facilitated.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection positioning devices, and particularly relates to an injection positioning device for endocrine clinical use. Background Art

[0002] During the treatment of clinical endocrine diseases, it is often necessary to inject drugs subcutaneously or intramuscularly to adjust the hormone levels of patients. Medical staff need to accurately insert the injection needle into the blood vessels of the patient's arm. However, some patients with endocrine disorders have physiological fluctuations due to hormonal imbalance, and then will actively or passively control the arm movements. At this time, medical staff cannot accurately insert the injection needle into the patient's arm vein.

[0003] In the Chinese patent with the publication number CN108325028B, an injection positioning device for endocrine clinical use is mentioned, including a bottom plate. A support column is provided in the middle above the bottom plate. An installation seat is provided above the support column. Rack bars are symmetrically provided on both sides below the installation seat. Slots are symmetrically provided on both sides above the support column. One end of the rack bar away from the installation seat is inserted into the slot. Rotation ports communicating with the slots are symmetrically provided on both sides of the support column. A rotation block is rotatably connected in the rotation port. A first rack is provided on the side of the rotation block. A second rack is provided on one side of the rack bar. The structure of the present invention is reasonable. One end of the pressing rod quickly contacts the rotation block, so that the rotation block is caught and cannot rotate, thus the distance between the installation seat and the support column can be well controlled, and then the clamping effect on the arm can be well adjusted, which is convenient for users to use.

[0004] During the application process, the applicant found that the above application has defects in use. When fixing the patient's arm, the first clamping ring and the second clamping ring that approach each other are used to clamp the patient's arm. However, the arm thicknesses of different patients are different, and the first clamping ring and the second clamping ring with fixed shapes cannot tightly clamp the arms of patients with different arm circumferences. Moreover, the device is only provided with one set of the first clamping ring and the second clamping ring, which can only clamp one place of the patient's arm and cannot ensure that the patient's arm can be stabilized after being clamped, and the use effect is limited. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an injection positioning device for endocrine clinical use to solve the problem that the existing injection positioning device cannot stably clamp the arms of patients with different arm circumferences.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An injection positioning device for endocrine clinical use, comprising:

[0008] A backing plate for placing a patient's arm, comprising a first mounting plate, a telescopic rod connected to the first mounting plate, and a second mounting plate slidably connected to the telescopic rod;

[0009] A clamping assembly connected to the backing plate, comprising two rotating shafts respectively hinged to the first mounting plate, with the ends of the two rotating shafts slidably connected. An outer clamping ring is fixedly connected to the rotating shaft, a connecting shaft is fixedly connected to the end of the outer clamping ring, the ends of the two connecting shafts are slidably connected, and a locking member is provided on one of the connecting shafts;

[0010] An adjusting and clamping assembly is arranged on the outer clamping ring.

[0011] Preferably, the adjusting and clamping assembly includes a positioning member fixedly connected to the outer clamping ring. A sleeve ring is fixedly connected to the lower end of the positioning member. A rod end is slidably inserted into the end of the sleeve ring. A first spring is arranged inside the sleeve ring, and both ends of the first spring abut against the end of the rod end.

[0012] Preferably, the positioning member includes a mounting cylinder fixedly connected to the outer clamping ring and a toothed rod slidably inserted into the mounting cylinder. The upper end of the toothed rod extends out of the upper end of the mounting cylinder. A pressure rod is connected to the lower end of the toothed rod, and the lower end of the pressure rod extends out of the lower end of the mounting cylinder and is connected to the sleeve ring. A second spring is arranged inside the mounting cylinder. One end of the second spring abuts against the inner wall of the mounting cylinder, and the other end abuts against the end of the pressure rod. An installation groove is formed on the side wall of the mounting cylinder. A limiting block is hinged to the inner wall of the installation groove, and the end of the limiting block abuts against the inside of the teeth of the toothed rod.

[0013] Preferably, a elastic sheet is connected between the mounting cylinder and the limiting block, and the elastic sheet is bent.

[0014] Preferably, a limiting rod arranged in an arc shape is hinged to the inner wall of the outer clamping ring. A sliding groove is formed on the limiting rod. A plug rod is connected to the sleeve ring, and the end of the plug rod is clamped inside the sliding groove.

[0015] Preferably, an annular groove is formed on the outer wall of the connecting shaft. A sliding sleeve is slidably connected inside the annular groove. A clamping block is connected to the sliding sleeve. A clamping groove arranged in an L shape is formed on the first mounting plate, and the clamping block is clamped inside the clamping groove.

[0016] Preferably, a lead screw is rotatably connected inside the second mounting plate. One end of the lead screw extends out of the second mounting plate and is threadedly connected to the first mounting plate. A rotating block is fixedly connected to the other end of the lead screw.

[0017] Preferably, an elbow abutting block is connected to the first mounting plate, and an arc-shaped groove is formed on the elbow abutting block.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] By providing a backing plate, a clamping component, a locking component and an adjusting and clamping component, when performing an intravenous drug injection operation on the arm of an endocrine patient with unstable limbs, the patient's arm can be clamped on the backing plate through the clamping component, and the rotation of the clamping component can be restricted through the locking component, thereby restricting the movement of the patient's arm. Then, the gap between the outer clamping ring and the patient's arm is adjusted through the adjusting and clamping component to further restrict the degree of freedom of the patient's arm, so that the patient's arm is firmly clamped on the backing plate. This can prevent the patient's arm from shaking when the medical staff inserts the injection needle, resulting in the injection needle not being accurately inserted into the arm vein. Moreover, this device can firmly clamp the arms of patients with different arm circumferences, has a wider scope of application, and is conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention Figure 1 ;

[0021] Figure 2 is the Figure 1 enlarged view of part A in the present invention;

[0022] Figure 3 is a schematic diagram of the overall structure of the present invention Figure 2 ;

[0023] Figure 4 is a schematic cross-sectional structure diagram of the clamping component of the present invention Figure 1 ;

[0024] Figure 5 is the Figure 4 enlarged view of part B in the present invention;

[0025] Figure 6 is a schematic cross-sectional structure diagram of the clamping component of the present invention Figure 2 ;

[0026] In the figure: 1, first mounting plate; 2, telescopic rod; 3, second mounting plate; 4, elbow abutting block; 5, lead screw; 6, rotating block; 7, rotating shaft; 8, outer clamping ring; 9, connecting shaft; 10, annular groove; 11, sliding sleeve; 12, clamping block; 13, clamping groove; 14, mounting cylinder; 15, outer sleeve ring; 16, end rod; 17, first spring; 18, limiting rod; 19, inserting rod; 20, toothed rod; 21, pressing rod; 22, second spring; 23, limiting block; 24, elastic piece. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1:

[0029] Please refer to Figure 1 - Figure 6 as shown in the figure, an injection positioning device for endocrine clinical use includes:

[0030] A backing plate for placing the patient's arm, including a first mounting plate 1, a telescopic rod 2 connected to the first mounting plate 1, and a second mounting plate 3 slidably connected to the telescopic rod 2;

[0031] A clamping component connected to the backing plate, including two rotating shafts 7 respectively hinged on the first mounting plate 1, and the ends of the two rotating shafts 7 are slidably connected. An outer clamping ring 8 is fixedly connected to the rotating shaft 7, a connecting shaft 9 is fixedly connected to the end of the outer clamping ring 8, the ends of the two connecting shafts 9 are slidably connected, and a locking member is provided on one of the connecting shafts 9;

[0032] An adjusting and clamping component is arranged on the outer clamping ring 8.

[0033] As can be seen from the above, by setting the backing plate, the clamping component, the locking member and the adjusting and clamping component, when performing intravenous injection of drugs on the arm of an endocrine patient with unstable limbs, the patient's arm can be clamped on the backing plate through the clamping component, and the rotation of the clamping component can be restricted by the locking member, thereby restricting the movement of the patient's arm. Then, the gap between the outer clamping ring 8 and the patient's arm is adjusted through the adjusting and clamping component to further restrict the degree of freedom of the patient's arm, so that the patient's arm is firmly clamped on the backing plate, avoiding the shaking of the patient's arm when the medical staff inserts the injection needle, resulting in the injection needle being unable to accurately insert into the arm vein. Moreover, this device can firmly clamp the arms of patients with different arm circumferences, has a wider application range, and is conducive to popularization and use.

[0034] Please refer to Figure 3 - Figure 6 as shown in the figure, the adjusting and clamping component includes a positioning member fixedly connected to the outer clamping ring 8. A jacket ring 15 is fixedly connected to the lower end of the positioning member. An end rod 16 is slidably inserted into the end of the jacket ring 15. A first spring 17 is arranged inside the jacket ring 15, and both ends of the first spring 17 are abutted against the ends of the end rod 16.

[0035] The user slides the outer sleeve ring 15 and the end rod 16 downward. As the outer sleeve ring 15 and the end cover 16 descend, the end rod 16 will abut against the backing plate and gradually retract into the inner part of the outer sleeve ring 15 to compress the first spring 17. At this time, the distance between the outer sleeve ring 15 and the backing plate becomes smaller, and then the patient's arm is clamped between the outer sleeve ring 15 and the backing plate. The positioning member will limit the position of the outer sleeve ring 15, so that the outer sleeve ring 15 stays stably in the lower position, helping the outer sleeve ring 15 to stably limit the patient's arm.

[0036] The positioning member includes a mounting cylinder 14 fixedly connected to the outer clamping ring 8 and a toothed rod 20 slidably inserted into the mounting cylinder 14. The upper end of the toothed rod 20 extends out of the upper end of the mounting cylinder 14. The lower end of the toothed rod 20 is connected with a pressing rod 21, and the lower end of the pressing rod 21 extends out of the lower end of the mounting cylinder 14 and is connected with the outer sleeve ring 15. A second spring 22 is arranged inside the mounting cylinder 14. One end of the second spring 22 abuts against the inner wall of the mounting cylinder 14, and the other end abuts against the end of the pressing rod 21. An installation groove is formed in the side wall of the mounting cylinder 14, and a limiting block 23 is hinged to the inner wall of the installation groove. The end of the limiting block 23 abuts against the inside of the teeth of the toothed rod 20.

[0037] The user can press down the toothed rod 20 and the pressing rod 21. While compressing the second spring 22, the lower end of the pressing rod 20 extends out of the mounting cylinder 14 and drives the outer sleeve ring 15 to move downward. When the outer sleeve ring 15 descends to an appropriate distance and stably clamps the patient's arm, the limiting block 23 is rotated so that the end of the limiting block 23 is clamped on the teeth of the toothed rod 20. The upward displacement of the toothed rod 20 is restricted by the mutual clamping of the limiting block 23 and the teeth, and thus the displacement of the outer sleeve ring 15 is restricted. When the user needs to release the restriction of the outer sleeve ring 15, the toothed rod 20 can be slightly pressed down so that the end of the limiting block 23 disengages from the toothed rod 20. At the same time, the limiting block 23 is rotated. When the end of the limiting block 23 rotates and disengages from the toothed rod 20, the toothed rod 20 and the pressing rod 21 can move upward, and thus the restriction on the patient's arm is released.

[0038] Please refer to Figure 5 As shown, a elastic sheet 24 is connected between the mounting cylinder 14 and the limiting block 23. The elastic sheet 24 is bent. The elastic sheet 24 can apply a thrust to the limiting block 23 so that the end of the limiting block 23 can be stably inserted into the teeth of the toothed rod 20. When the user needs the end of the limiting block 23 to disengage from the teeth, only the limiting block 23 needs to be rotated to compress the elastic sheet 24, so that the elastic sheet 24 bends and stores energy. At this time, the end of the limiting block 23 will disengage from the teeth of the toothed rod 20. When the user releases the hand, the elastic sheet 24 resets and is stuck inside the teeth of the toothed rod 20 again.

[0039] An arc-shaped limiting rod 18 is hinged to the inner wall of the outer snap ring 8. A chute is formed on the limiting rod 18. A plug rod 19 is connected to the outer sleeve ring 15, and the end of the plug rod 19 is clamped inside the chute. When the outer sleeve ring 15 drives the plug rod 19 to move downward, the downward-moving plug rod 19 will slide inside the chute, thereby causing the limiting rod 18 to rotate. The rotating limiting rod 18 will clamp on both sides of the patient's arm. At this time, under the clamping action of the outer sleeve ring 15 and the limiting rod 18, the patient's arm is stably placed on the first mounting plate 1 and the second mounting plate 3.

[0040] Embodiment 2:

[0041] Please refer to Figure 1 - Figure 6 As shown in the figure, an injection positioning device for endocrine clinical use includes:

[0042] A backing plate for placing the patient's arm, including a first mounting plate 1, a telescopic rod 2 connected to the first mounting plate 1, and a second mounting plate 3 slidably connected to the telescopic rod 2;

[0043] A clamping component connected to the backing plate, including two rotating shafts 7 respectively hinged to the first mounting plate 1, and the ends of the two rotating shafts 7 are slidably connected. An outer snap ring 8 is fixedly connected to the rotating shaft 7. A connecting shaft 9 is fixedly connected to the end of the outer snap ring 8. The ends of the two connecting shafts 9 are slidably connected. A locking member is provided on one of the connecting shafts 9;

[0044] An adjusting and clamping component is arranged on the outer snap ring 8.

[0045] As can be seen from the above, by providing a backing plate, a clamping component, a locking member and an adjusting and clamping component, when performing an arm drug intravenous injection operation on an endocrine patient with unstable limbs, the patient's arm can be clamped on the backing plate through the clamping component, and the rotation of the clamping component can be restricted through the locking member, thereby restricting the movement of the patient's arm. Then, the gap between the outer snap ring 8 and the patient's arm is adjusted through the adjusting and clamping component to further restrict the degree of freedom of the patient's arm, so that the patient's arm is firmly clamped on the backing plate, avoiding the patient's arm shaking when the medical staff inserts the injection needle, resulting in the injection needle being unable to accurately insert into the arm vein. Moreover, this device can firmly clamp the arms of patients with different arm circumferences, has a wider application range, and is conducive to popularization and use.

[0046] Please refer to Figure 3 - Figure 6 As shown in the figure, the adjusting and clamping component includes a positioning member fixedly connected to the outer snap ring 8. The lower end of the positioning member is fixedly connected to an outer sleeve ring 15. An end rod 16 is slidably inserted into the end of the outer sleeve ring 15. A first spring 17 is arranged inside the outer sleeve ring 15, and both ends of the first spring 17 are abutted against the end of the end rod 16.

[0047] The user slides the outer sleeve ring 15 and the end rod 16 downward. As the outer sleeve ring 15 and the end cap 16 descend, the end rod 16 will abut against the backing plate and gradually retract into the outer sleeve ring 15 to compress the first spring 17. At this time, the distance between the outer sleeve ring 15 and the backing plate becomes smaller, and then the patient's arm is clamped between the outer sleeve ring 15 and the backing plate. The positioning member will limit the position of the outer sleeve ring 15, so that the outer sleeve ring 15 stays stably in the lower position, helping the outer sleeve ring 15 to stably restrict the patient's arm.

[0048] The positioning member includes an installation cylinder 14 fixedly connected to the outer clamping ring 8 and a toothed rod 20 slidably inserted into the installation cylinder 14. The upper end of the toothed rod 20 extends out of the upper end of the installation cylinder 14. The lower end of the toothed rod 20 is connected with a pressure rod 21, and the lower end of the pressure rod 21 extends out of the lower end of the installation cylinder 14 and is connected with the outer sleeve ring 15. A second spring 22 is arranged inside the installation cylinder 14. One end of the second spring 22 abuts against the inner wall of the installation cylinder 14, and the other end abuts against the end of the pressure rod 21. An installation groove is formed in the side wall of the installation cylinder 14, and a limiting block 23 is hinged to the inner wall of the installation groove. The end of the limiting block 23 abuts against the inside of the teeth of the toothed rod 20.

[0049] The user can press down the toothed rod 20 and the pressure rod 21. While compressing the second spring 22, the lower end of the pressure rod 20 extends out of the installation cylinder 14 and drives the outer sleeve ring 15 to move downward. When the outer sleeve ring 15 descends to a suitable distance and stably clamps the patient's arm, the limiting block 23 is rotated so that the end of the limiting block 23 is clamped on the teeth of the toothed rod 20. The upward displacement of the toothed rod 20 is restricted by the mutual clamping of the limiting block 23 and the teeth, and then the displacement of the outer sleeve ring 15 is restricted. When the user needs to release the restriction of the outer sleeve ring 15, the toothed rod 20 can be slightly pressed down so that the end of the limiting block 23 disengages from the toothed rod 20, and at the same time the limiting block 23 is rotated. When the end of the limiting block 23 rotates and disengages from the toothed rod 20, the toothed rod 20 and the pressure rod 21 can move upward, and then the restriction on the patient's arm is released.

[0050] Please refer to Figure 5 As shown, a spring piece 24 is connected between the installation cylinder 14 and the limiting block 23. The spring piece 24 is bent. The spring piece 24 can exert a thrust on the limiting block 23 so that the end of the limiting block 23 can be stably inserted into the teeth of the toothed rod 20. When the user needs the end of the limiting block 23 to disengage from the teeth, only the limiting block 23 needs to be rotated to compress the spring piece 24 so that the spring piece 24 bends and stores energy. At this time, the end of the limiting block 23 will disengage from the teeth of the toothed rod 20. When the user releases the hand, the spring piece 24 resets and is inserted into the teeth of the toothed rod 20 again.

[0051] An arc-shaped limiting rod 18 is hinged to the inner wall of the outer snap ring 8. A chute is formed in the limiting rod 18. A plug rod 19 is connected to the outer sleeve ring 15, and the end of the plug rod 19 is clamped inside the chute. When the outer sleeve ring 15 drives the plug rod 19 to move downward, the downward-moving plug rod 19 will slide inside the chute, thereby causing the limiting rod 18 to rotate. The rotating limiting rod 18 will clamp on both sides of the patient's arm. At this time, under the clamping action of the outer sleeve ring 15 and the limiting rod 18, the patient's arm is stably placed on the first mounting plate 1 and the second mounting plate 3.

[0052] Please refer to Figure 1 - Figure 2 As shown, a ring groove 10 is formed in the outer wall of the connecting shaft 9. A sliding sleeve 11 is slidably connected inside the ring groove 10. A clamping block 12 is connected to the sliding sleeve 11. An L-shaped clamping groove 13 is formed in the first mounting plate 1. The clamping block 12 is clamped inside the clamping groove 13. After the user clamps the outer sleeve ring 15 on the patient's arm, the clamping block 12 can be clamped inside the clamping groove 13, and then the sliding sleeve 11 is slid to make the clamping block 12 slide inside the clamping groove 13. The clamping block 12 and the clamping groove 13 cooperate to clamp the sliding sleeve 11, and the position of the connecting shaft 9 is restricted by the sliding sleeve 11, thereby restricting the freedom degree of the outer sleeve ring 15.

[0053] A lead screw 5 is rotatably connected inside the second mounting plate 3. One end of the lead screw 5 extends out of the second mounting plate 3 and is threadedly connected to the first mounting plate 1. The other end of the lead screw 5 is fixedly connected to a rotating block 6. The user can rotate the lead screw 5 through the rotating block 6, thereby adjusting the distance between the first mounting plate 1 and the second mounting plate 3, which is convenient for the user to stably clamp the two outer sleeve rings 15 on the patient's arms with different lengths.

[0054] An elbow abutting block 4 is connected to the first mounting plate 1. An arc-shaped groove is formed in the elbow abutting block 4. The elbow of the patient's arm placed on the first mounting plate 1 will abut against the elbow abutting block 4, and the elbow abutting block 4 will restrict the movement of the patient's arm, thereby preventing the patient's arm from being withdrawn from the outer sleeve ring 15.

[0055] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0056] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0057] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0059] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not have to be directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0060] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures may refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention may be combined with each other.

Claims

1. An injection positioning device for endocrine clinic, characterized in that: include: A pad, used for placing a patient's arm, comprising a first mounting plate (1), a telescopic rod (2) connected to the first mounting plate (1), and a second mounting plate (3) slidably connected to the telescopic rod (2); A clamping assembly, connected to the backing plate, comprises two rotating shafts (7) respectively hinged on the first mounting plate (1), and the ends of the two rotating shafts (7) are slidably connected, an outer clamping ring (8) is fixedly connected to the rotating shaft (7), and a connecting shaft (9) is fixedly connected to the end of the outer clamping ring (8), the ends of the two connecting shafts (9) are slidably connected, and a locking piece is provided on one of the connecting shafts (9); An adjusting clamping assembly is arranged on the outer clamping ring (8).

2. The injection positioning device for endocrine clinical use according to claim 1, characterized in that: The adjusting clamping assembly comprises a positioning member fixedly connected to the outer clamping ring (8), the lower end of the positioning member is fixedly connected to an outer ring (15), the end of the outer ring (15) is slidably inserted with an end rod (16), a first spring (17) is arranged inside the outer ring (15), and both ends of the first spring (17) are in contact with the end of the end rod (16).

3. The injection positioning device for endocrine clinical use according to claim 2, characterized in that: The positioning member comprises a mounting tube (14) fixedly connected to the outer retaining ring (8) and a gear rod (20) slidably inserted in the mounting tube (14); the upper end of the gear rod (20) extends out of the upper end of the mounting tube (14); the lower end of the gear rod (20) is connected to a pressure rod (21); and the lower end of the pressure rod (21) extends out of the lower end of the mounting tube (14) and is connected to the outer ring (15); a second spring (22) is arranged inside the mounting tube (14); one end of the second spring (22) abuts against the inner wall of the mounting tube (14) and the other end abuts against the end of the pressure rod (21); a mounting groove is provided on the side wall of the mounting tube (14); a limiting block (23) is hingedly connected to the inner wall of the mounting groove; and the end of the limiting block (23) abuts against the inside of the clamping teeth of the gear rod (20).

4. The injection positioning device for endocrine clinical use according to claim 3, characterized in that: A spring sheet (24) is connected between the installation tube (14) and the limiting block (23), and the spring sheet (24) is bent.

5. The injection positioning device for endocrine clinical use according to claim 3, characterized in that: The inner wall of the outer clamping ring (8) is hinged with a limit rod (18) arranged in an arc shape, and a slide groove is provided on the limit rod (18). The outer collar (15) is connected with an insertion rod (19), and the end of the insertion rod (19) is clamped in the inside of the slide groove.

6. The injection positioning device for endocrine clinical use according to claim 1, characterized in that: The outer wall of the connecting shaft (9) is provided with an annular groove (10), a sliding sleeve (11) is slidably connected inside the annular groove (10), a clamping block (12) is connected to the sliding sleeve (11), and the first mounting plate (1) is provided with an L-shaped clamping groove (13), and the clamping block (12) is clamped inside the clamping groove (13).

7. The injection positioning device for endocrine clinical use according to claim 1, characterized in that: A lead screw (5) is rotatably connected inside the second mounting plate (3), one end of the lead screw (5) extends out of the second mounting plate (3) and is threadedly connected to the first mounting plate (1), and the other end of the lead screw (5) is fixedly connected to a rotating block (6).

8. The injection positioning device for endocrine clinical use according to claim 1, characterized in that: The first mounting plate (1) is connected to an elbow support block (4), and an arc-shaped groove is provided on the elbow support block (4).

Images