Blood vessel flow limiter

Abstract

The utility model discloses a blood vessel flow restrictor which comprises a clamping rod, the clamping rod comprises a holding rod part, an upper forceps rod part and a lower forceps rod part, a pressing ring assembly is arranged at one end of the upper forceps rod part, and a pressing plate is arranged at one end of the lower forceps rod part; the adjusting mechanism comprises a first sliding block arranged on the upper forceps rod part in a sliding mode, a second sliding block arranged on the lower forceps rod part in a sliding mode, a screw rod and an annular rope. The pressing ring assembly is structurally formed by connecting the two U-shaped rods in a sleeved mode, the two U-shaped rods are contracted by moving the sliding block to pull the annular rope, adjustment can be carried out according to the size of a focus, treatment of a patient is facilitated, a rotary knob on the screw can be rotated, the distance between the two forceps rod parts of the clamping rods can be adjusted, and flexible use can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral auxiliary treatment instruments, in particular to a blood vessel flow restrictor. Background Art

[0002] Vascular flow restrictors are commonly used in the treatment of arteriovenous malformations in the oral and maxillofacial region and are applied to the patient's lips, cheeks, and tongue. Existing vascular flow restrictors are fixed structures as a whole, and the pressure ring of the vascular flow restrictor cannot be adjusted according to the size of the lesion, which is not conducive to patient treatment. Therefore, a vascular flow restrictor is urgently needed to solve the above problem. Utility Model Content

[0003] The purpose of the present invention is to provide a vascular flow restrictor to solve the problem in the above background technology that the existing vascular flow restrictor is a fixed structure as a whole and the pressure ring of the vascular flow restrictor cannot be adjusted according to the size of the lesion, which is not conducive to patient treatment.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a vascular flow restrictor, comprising a clamping rod, the clamping rod comprising a gripping rod portion, an upper clamping rod portion, and a lower clamping rod portion, one end of the upper clamping rod portion being provided with a pressure ring assembly, and one end of the lower clamping rod portion being provided with a pressure plate;

[0005] The adjusting mechanism includes a first slider slidably arranged on the upper clamp rod, a second slider slidably arranged on the lower clamp rod, a screw rod and an annular rope;

[0006] One end of the screw is fixed to the second slider, and the other end of the screw passes through the first slider. The screw is located above the first slider and is threadedly connected to a knob.

[0007] One side of the annular rope is sleeved on the outside of the pressure ring assembly, and the other side of the annular rope is connected to the first sliding block.

[0008] As a preferred solution of the vascular flow restrictor of the present invention, the pressure ring assembly includes a first U-shaped rod and a second U-shaped rod, the first U-shaped rod is connected to the upper clamp rod, and slots are provided on both sides of the second U-shaped rod, and the second U-shaped rod is connected to the first U-shaped rod through the slots.

[0009] As a preferred solution of the vascular flow restrictor of the present invention, wherein: rope loops are provided on the first U-shaped rod and the second U-shaped rod, and the annular rope passes through the rope loops and is placed outside the first U-shaped rod and the second U-shaped rod.

[0010] As a preferred solution of the vascular flow restrictor of the present invention, a clamping ring is provided at the bottom of the first slider, the clamping ring is sleeved on the outside of the screw, and the annular rope is looped on the clamping ring at the bottom of the first slider.

[0011] As a preferred solution of the vascular flow restrictor of the present invention, wherein: the upper clamp rod and the lower clamp rod are both provided with sliding grooves, and the first slider and the second slider are respectively arranged in the corresponding sliding grooves to form a sliding arrangement.

[0012] As a preferred solution of the vascular flow restrictor of the present invention, the interior of the first slider is a hollow structure, pin blocks are inserted on both sides of the first slider, a spring piece is connected between the two pin blocks, and a push rod is inserted above the first slider and located above the spring piece.

[0013] As a preferred solution of the vascular flow restrictor of the present invention, a limiting plate is further provided at the bottom of the spring piece, the limiting plate of the spring piece is inserted into the bottom of the first slider, and the push rod and the limiting plate are both located in the middle of the spring piece.

[0014] As a preferred solution of the vascular flow restrictor of the present invention, a plurality of gear slots are provided on both sides of the slide groove of the upper clamp rod, and the pin blocks on both sides of the first sliding block are inserted into the gear slots of the upper clamp rod.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model is provided with a compression ring assembly whose structure is composed of two sections of U-shaped rods sleeved together. By moving the slider to pull the annular rope, the two U-shaped rods are contracted and can be adjusted according to the size of the lesion, which is beneficial to patient treatment. The knob on the screw can also be turned to adjust the distance between the two clamp rod parts of the clamp rod, so that it can be used flexibly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 3 This is a schematic structural diagram of the pressure ring assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the first slider of the utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the first slider when the push rod is pressed in the present invention.

[0023] In the figure: 1, clamping rod; 101, gripping rod; 102, upper clamping rod; 103, lower clamping rod; 104, pressure ring assembly; 104a, first U-shaped rod; 104b, second U-shaped rod; 104b-1, slot; 105, rope loop; 106, pressure plate;

[0024] 2. Adjustment mechanism; 201. First slider; 201a. Snap ring; 201b. Pin block; 201c. Spring piece; 201d. Push rod; 201e. Limit plate; 202. Second slider; 203. Screw; 204. Ring rope; 205. Knob; 206. Slide groove; 207. Gear slot. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 A vascular flow restrictor includes a clamping rod 1, the clamping rod 1 including a gripping rod portion 101, an upper clamping rod portion 102, and a lower clamping rod portion 103. One end of the upper clamping rod portion 102 is provided with a pressure ring assembly 104, and one end of the lower clamping rod portion 103 is provided with a pressure plate 106.

[0027] It should be noted that a hinge is provided on the grip portion 101 to facilitate adjustment of the angles of the upper clamp portion 102 and the lower clamp portion 103. The pressure ring assembly 104 and the pressure plate 106 are both oblong, the pressure ring assembly 104 is a hollow structure, and the pressure plate 106 is a solid structure.

[0028] The adjustment mechanism 2 includes a first slider 201 slidably mounted on the upper clamp rod 102 , a second slider 202 slidably mounted on the lower clamp rod 103 , a screw 203 and an annular rope 204 ;

[0029] One end of the screw rod 203 is fixed to the second slider 202, and the other end of the screw rod 203 passes through the first slider 201. The screw rod 203 is located above the first slider 201 and is threadedly connected to the knob 205.

[0030] One side of the annular rope 204 is sleeved on the outside of the pressure ring assembly 104 , and the other side of the annular rope 204 is connected to the first slider 201 .

[0031] In this embodiment, the pressure ring assembly 104 includes a first U-shaped rod 104a and a second U-shaped rod 104b. The first U-shaped rod 104a is connected to the upper clamp rod 102. Both sides of the second U-shaped rod 104b are provided with slots 104b-1. The second U-shaped rod 104b is connected to the first U-shaped rod 104a through the slots 104b-1.

[0032] Specifically, a rope loop 105 is provided on the first U-shaped rod 104a and the second U-shaped rod 104b, and the annular rope 204 passes through the rope loop 105 and is placed outside the first U-shaped rod 104a and the second U-shaped rod 104b;

[0033] It should be noted that the first U-shaped rod 104a and the second U-shaped rod 104b are both elastic metal parts. The outside of the pressure ring assembly 104, the outside of the pressure plate 106, the front end of the upper clamp rod 102 and the lower clamp rod 103 can be covered with rubber covers, which can not only protect the oral cavity, but also the rubber covers need to be replaced and disinfected when used next time to ensure the hygiene of the instrument.

[0034] In this embodiment, a snap ring 201a is provided at the bottom of the first slider 201. The snap ring 201a is sleeved on the outside of the screw 203. The annular rope 204 is sleeved on the snap ring 201a at the bottom of the first slider 201.

[0035] It should be noted that when the upper clamp rod 102 and the lower clamp rod 103 are pushed, the first slider 201 and the snap ring 201 a can slide along the screw rod 203 .

[0036] In this embodiment, a slide groove 206 is provided on both the upper clamp rod 102 and the lower clamp rod 103, and the first slider 201 and the second slider 202 are respectively disposed in the corresponding slide grooves 206 to form a sliding arrangement;

[0037] It should be noted that the chute 206 is a waist-shaped hole structure. The width of the middle portion of the first slider 201 and the second slider 202 is the same as the width of the chute 206. The width of the upper and lower sides of the first slider 201 and the second slider 202 is greater than the width of the chute 206, so that the first slider 201 and the second slider 202 will not fall out of the chute 206.

[0038] The first slider 201 has a hollow interior. Pin blocks 201b are inserted on both sides of the first slider 201. A spring 201c is connected between the two pin blocks 201b. A push rod 201d is inserted above the spring 201c on the first slider 201.

[0039] A limiting plate 201e is further provided at the bottom of the spring piece 201c. The limiting plate 201e of the spring piece 201c is inserted into the bottom of the first slider 201. The push rod 201d and the limiting plate 201e are both located in the middle of the spring piece 201c.

[0040] A plurality of shift slots 207 are provided on both sides of the slide slot 206 of the upper clamp rod 102, and the pin blocks 201b on both sides of the first slider 201 are inserted into the shift slots 207 of the upper clamp rod 102;

[0041] It should be noted that the bottom end of the push rod 201d is an arc-shaped structure, a limit ring is provided on the push rod 201d, the number of gear slots 207 provided on one side of the slide slot 206 is 4-8, and the pin blocks 201b on both sides of the first slider 201 cooperate with the gear slots 207.

[0042] When the blood vessel flow restrictor needs to adjust the distance between the upper clamp rod 102 and the lower clamp rod 103, the knob 205 is rotated to move the knob 205 up and down along the screw rod 203, thereby adjusting the distance between the upper clamp rod 102 and the lower clamp rod 103;

[0043] When the size of the pressure ring assembly 104 of the vascular flow restrictor needs to be adjusted, the push rod 201d is pressed so that the bottom end of the push rod 201d presses against the spring piece 201c to bend it into an arc shape. The limiting plate 201e at the bottom of the spring piece 201c is used to limit the position, so that the two ends of the spring piece 201c pull the pin block 201b to move inward until the pin block 201b moves out of the gear slot 207 of the upper clamp rod 102, and then the first slider 201 and the second slider 202 are moved at the same time. The annular rope 204 is pulled by the first slider 201, so that the first U-shaped rod 104a and the second U-shaped rod 104b are interlaced and contracted with each other, thereby adjusting the size of the pressure ring assembly 104.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A vascular flow restrictor, characterized in that: include, A clamping rod (1), the clamping rod (1) comprising a gripping rod portion (101), an upper clamping rod portion (102) and a lower clamping rod portion (103), one end of the upper clamping rod portion (102) being provided with a pressure ring assembly (104), and one end of the lower clamping rod portion (103) being provided with a pressure plate (106); An adjustment mechanism (2) comprising a first slider (201) slidably arranged on the upper clamp rod (102), a second slider (202) slidably arranged on the lower clamp rod (103), a screw (203) and an annular rope (204); One end of the screw rod (203) is fixed on the second slider (202), and the other end of the screw rod (203) passes through the first slider (201). The screw rod (203) is located above the first slider (201) and is threadedly connected to a knob (205); One side of the annular rope (204) is sleeved on the outside of the pressure ring assembly (104), and the other side of the annular rope (204) is connected to the first sliding block (201).

2. The vascular flow restrictor according to claim 1, characterized in that: The pressure ring assembly (104) comprises a first U-shaped rod (104a) and a second U-shaped rod (104b), wherein the first U-shaped rod (104a) is connected to the upper clamp rod portion (102), and slots (104b-1) are provided on both sides of the second U-shaped rod (104b), and the second U-shaped rod (104b) is connected to the first U-shaped rod (104a) through the slots (104b-1).

3. The vascular flow restrictor according to claim 2, characterized in that: Rope loops (105) are provided on the first U-shaped rod (104a) and the second U-shaped rod (104b), and the annular rope (204) passes through the rope loops (105) and is placed outside the first U-shaped rod (104a) and the second U-shaped rod (104b).

4. The vascular flow restrictor according to claim 2 or 3, characterized in that: A snap ring (201a) is provided at the bottom of the first slider (201), and the snap ring (201a) is sleeved on the outside of the screw rod (203). The annular rope (204) is sleeved on the snap ring (201a) at the bottom of the first slider (201).

5. The blood vessel flow restrictor according to claim 4, characterized in that: The upper clamp rod portion (102) and the lower clamp rod portion (103) are both provided with a slide groove (206), and the first slider (201) and the second slider (202) are respectively arranged in the corresponding slide groove (206) to form a sliding arrangement.

6. The blood vessel flow restrictor according to claim 5, characterized in that: The interior of the first slider (201) is a hollow structure, pin blocks (201b) are inserted on both sides of the first slider (201), a spring piece (201c) is connected between the two pin blocks (201b), and a push rod (201d) is inserted above the spring piece (201c) on the first slider (201).

7. The blood vessel flow restrictor according to claim 6, characterized in that: A limiting plate (201e) is further provided at the bottom of the spring piece (201c), the limiting plate (201e) of the spring piece (201c) being inserted and arranged at the bottom of the first sliding block (201), and the push rod (201d) and the limiting plate (201e) are both located in the middle of the spring piece (201c).

8. The blood vessel flow restrictor according to claim 7, characterized in that: A plurality of shift slots (207) are provided on both sides of the slide slot (206) of the upper clamp rod portion (102), and the pin blocks (201b) on both sides of the first sliding block (201) are inserted into the shift slots (207) of the upper clamp rod portion (102).

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