Medical puncture outfit

Abstract

The medical puncture outfit comprises a connecting sleeve, a cleaning ring, an inflation sleeve and a puncture needle, the puncture needle comprises a needle cover and a needle body, the inflation sleeve is fixedly connected to the bottom of the cleaning ring, the needle body penetrates through the connecting sleeve, the cleaning ring and the inflation sleeve, the inflation sleeve comprises a puncture sleeve body, and the puncture sleeve body is fixedly connected to the bottom of the cleaning ring. The puncture sleeve is located at the bottom of the inflation sleeve, a sealing assembly is arranged outside the puncture sleeve and comprises an adjusting assembly and a traction assembly, the adjusting assembly is suitable for being acted to drive the traction assembly to longitudinally move outside the puncture sleeve, the traction assembly comprises a rotatable clamping part, and the clamping part is used for clamping the puncture sleeve. The clamping component is suitable for being driven to rotate after clamping an object so as to drive the clamped object to be close to the peripheral face of the puncture sleeve, the skin surface layer is clamped through the rotatable clamping component and pulled to the position close to the puncture sleeve, and the better sealing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, specifically, relate to a medical puncture outfit. BACKGROUND

[0002] At present, surgical puncture outfit as an important surgical tool is widely used in various surgical operations needing to establish internal and external channel, due to the softness and elasticity of human skin, when the puncture outfit penetrates the skin, the skin tissue around the puncture hole often cannot closely adhere to the outer wall of the puncture tube, and the poor sealing performance between the skin at the puncture hole and the puncture tube leads to the gas in the abdominal cavity to leak out through the puncture hole during the operation, especially in the laparoscopic surgery needing to maintain a certain gas pressure in the abdominal cavity.

[0003] After retrieval, it is found that the authorized announcement No. CN219461327U of the Chinese utility model patent discloses a medical puncture outfit, the patent includes a puncture outfit main body, a fixed end, a puncture tube and a plurality of fixed blocks, the bottom of the fixed block is provided with a groove and a rotatable supporting leg, the bottom of the fixed end is also provided with a baffle and a spring connecting supporting leg, in addition, the bottom of the fixed end has an external thread sleeve and a sticking layer for fixation, through the supporting leg, spring and hook, the skin can be pulled tight to the puncture hole to enhance the sealing performance, however, the internal thread ring of the patent cannot be locked when rotating on the external thread sleeve, which may cause the supporting leg to loosen, so that the structure loses the fastening effect, the sticking layer may lose the adhesion after use, so that it cannot be reused, which increases the cost, the whole design involves multiple components and complex mechanical structure, which may increase the manufacturing and maintenance cost, and at the same time reduce the use convenience. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects in the prior art, the skin surface layer is clamped and pulled close to the puncture sleeve by the rotatable clamping part, and better sealing effect is realized.

[0005] In order to solve the above technical problems, the technical scheme of the utility model is a medical puncture outfit, which comprises:

[0006] The connecting sleeve, the cleaning ring, the inflation sleeve and the puncture needle;

[0007] The puncture needle comprises a needle cover and a needle body;

[0008] The needle cover is connected with the connecting sleeve through dismounting part one, the cleaning ring is connected with the connecting sleeve through dismounting part two, the inflation sleeve is fixedly connected at the bottom of the cleaning ring, and the needle body passes through the connecting sleeve, the cleaning ring and the inflation sleeve;

[0009] The inflatable sleeve comprises a puncture sleeve located at the bottom of the inflatable sleeve, and the outer part of the puncture sleeve is provided with a sealing assembly;

[0010] The sealing assembly comprises an adjusting assembly and a traction assembly, and the adjusting assembly is adapted to be actuated to drive the traction assembly to move longitudinally outside the puncture sleeve;

[0011] The traction assembly comprises a rotatable clamping part, which is adapted to clamp an object and then be driven to rotate to drive the clamped object close to the outer peripheral surface of the puncture sleeve.

[0012] Further, the dismounting part one comprises an abutting part one and an abutting part two, the abutting part one is located on the needle cover, the abutting part two is located on the connecting sleeve, and the abutting part one and the abutting part two are threadedly matched.

[0013] Further, the dismounting part two comprises a connecting part one and a connecting part two, the connecting part one is located on the connecting sleeve, the connecting part two is located on the cleaning ring, and the connecting part one and the connecting part two are threadedly matched.

[0014] Further, the inflatable sleeve further comprises an inflation port, and an inflation gap in communication with the inflation port is arranged between the outer peripheral surface of the needle body and the inner wall of the puncture sleeve.

[0015] Further, a silica gel ring is arranged in the connecting sleeve, and the silica gel ring is provided with a central hole, and the needle body passes through the central hole of the silica gel ring;

[0016] The part of the silica gel ring in contact with the needle body is provided with a lubricating part.

[0017] Further, the adjusting assembly comprises a sliding sleeve and a fixing bolt, and the sliding sleeve is movably sleeved outside the puncture sleeve;

[0018] The fixing bolt is threadedly connected on the sliding sleeve, and the fixing bolt is adapted to be rotated to fix the sliding sleeve and the puncture sleeve.

[0019] Further, the traction assembly further comprises a rotating shaft, and the rotating shaft is rotatably installed inside the traction assembly;

[0020] The clamping part comprises a transmission sleeve and a clamping jaw, the transmission sleeve is fixedly sleeved on the outer peripheral surface of the rotating shaft, and the clamping jaw is fixedly connected on the bottom of the transmission sleeve;

[0021] The clamping jaw is made of elastic material, and the clamping part of the clamping jaw is provided with a rubber pad.

[0022] Further, the traction assembly further comprises a limiting component, the limiting component comprises a limiting rod and a limiting sleeve, the limiting rod is fixedly connected on the outer circumferential surface of the rotating shaft, and the limiting sleeve is connected on the outer surface of the traction assembly.

[0023] The limiting sleeve is made of elastic material, and the limiting rod is adapted to be clamped into the inside of the limiting sleeve after being driven to rotate by the rotating shaft.

[0024] Further, the cleaning ring is provided with a cleaning assembly, the cleaning assembly comprises two cleaning rollers, and the two cleaning rollers are both rotationally installed in the inside of the cleaning ring.

[0025] The two cleaning rollers are both adhered with annular sponges, the outer circumferential surfaces of the two annular sponges abut against each other, and the needle body penetrates between the two annular sponges.

[0026] Further, the cleaning assembly further comprises two extrusion plates, and the two extrusion plates correspond to the two cleaning rollers one by one.

[0027] The part, at which the extrusion plate contacts with the annular sponge on the cleaning roller, is provided with a cleaning knob.

[0028] The extrusion plate is provided with a receiving groove in the inside, and the receiving groove is provided with a water-absorbing sponge in the inside.

[0029] The cleaning knob is adapted to extrude the annular sponge on the cleaning roller and guide the liquid in the annular sponge into the receiving groove.

[0030] By adopting the above technical scheme, the utility model has the following beneficial effects:

[0031] 1. By arranging the silica gel ring and the lubricating part, the silica gel ring is made of elastic material and has the effect of contraction, and can automatically adjust according to the specification of the medical instrument inserted, the lubricating part is provided with lubricating oil, the problem that the medical instrument inserted and the silica gel ring are not easy to operate due to excessive friction therebetween is avoided, and the convenience of use is improved, and different adjusting sleeves do not need to be replaced.

[0032] 2. By arranging the traction assembly, the clamping jaw in the traction assembly can automatically clamp the skin inserted therein through the elasticity thereof, and after clamping, the skin is pulled close to the puncture sleeve through the rotating mode of the rotating shaft, so that the further sealing effect is realized.

[0033] 3. By arranging the adjusting assembly, the adjusting assembly can drive the traction assembly to adjust the position of the traction assembly according to the actual situation in operation, the inconvenience brought by the fixed position of the traction assembly to the operation is avoided, and the flexibility of use is improved.

[0034] 4、Through the setting of the limiting part, after the skin is pulled and grabbed by the clamping jaw, the limiting rod is clamped into the inside of the limiting sleeve, so that the problem that the skin falls off from the clamping jaw due to shaking in the operation process can be avoided, and when an emergency is found in the operation, the limiting rod only needs to be pulled to release the limiting, so that the safety in use is improved.

[0035] 5、Through the setting of the cleaning roller and the annular sponge, after various medical instruments are used, a large amount of impurities will be attached to the surface, when the medical instrument is pulled out of the puncture sleeve, the annular sponge will be contacted and the cleaning roller will be driven to rotate, the annular sponge wipes and adsorbs the impurities on the surface, so that the self-cleaning effect is realized.

[0036] 6、Through the setting of the extrusion plate and the water-absorbing sponge, after the annular sponge adsorbs a large amount of impurities, the annular sponge will be continuously extruded by the extrusion plate through the rotation of the cleaning roller, the liquid impurities in the annular sponge will be extruded and guided into the storage groove for collection after extrusion, so that it is ensured that the cleaning assembly can be used for a long time without frequent replacement. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the puncture device of the utility model;

[0038] Figure 2 It is a schematic diagram of the puncture needle structure of the utility model;

[0039] Figure 3 It is a schematic diagram of the internal structure of the connecting sleeve and the cleaning ring of the utility model;

[0040] Figure 4 It is a left side schematic diagram of the overall structure of the sealing assembly of the utility model;

[0041] Figure 5 It is a right side view of the overall structure of the sealing assembly of the utility model;

[0042] Figure 6 It is a schematic diagram of the cleaning assembly structure of the utility model Figure 5 It is an enlarged view of A in the utility model;

[0043] Figure 7 It is a schematic diagram of the cleaning assembly structure of the utility model Figure 1 ;

[0044] Figure 8 It is a schematic diagram of the cleaning assembly structure of the utility model Figure 2 .

[0045] In the figure: 1, puncture needle; 101, needle cover; 102, butt joint part one; 103, needle body;

[0046] 2, connecting sleeve; 201, silica gel ring; 202, butt joint part two; 203, connecting part one; 204, lubricating part;

[0047] 3, cleaning ring; 301, cleaning roller; 302, extrusion plate; 303, cleaning knob; 304, storage groove;

[0048] 4, inflatable sleeve; 401, inflation port; 402, puncture sleeve;

[0049] 5, sealing assembly;

[0050] 6, adjusting assembly; 601, sliding sleeve; 602, fixing bolt;

[0051] 7, traction assembly; 701, rotating shaft; 702, transmission sleeve; 703, clamping jaw; 704, rubber pad;

[0052] 8, limiting component; 801, limiting rod; 802, limiting sleeve. DETAILED DESCRIPTION

[0053] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed.

[0054] Example one

[0055] As Figures 1-2 shown, a medical puncture device includes:

[0056] Connecting sleeve 2, cleaning ring 3, inflatable sleeve 4 and puncture needle 1;

[0057] Puncture needle 1 includes needle cover 101 and needle body 103;

[0058] The needle cover 101 is connected between the connecting sleeve 2 through the disassembly component one, the cleaning ring 3 is connected between the connecting sleeve 2 through the disassembly component two, the inflatable sleeve 4 is fixedly connected at the bottom of the cleaning ring 3, and the needle body 103 passes through the connecting sleeve 2, the cleaning ring 3 and the inflatable sleeve 4;

[0059] The inflatable sleeve 4 includes puncture sleeve 402, and the puncture sleeve 402 is located at the bottom of the inflatable sleeve 4, and the outer portion of the puncture sleeve 402 is provided with sealing assembly 5;

[0060] Sealing assembly 5 includes adjusting assembly 6 and traction assembly 7, adjusting assembly 6 is suitable for passive action to drive traction assembly 7 to move longitudinally outside the puncture sleeve 402;

[0061] Traction assembly 7 includes rotatable clamping component, and the clamping component is suitable for clamping object and is driven to rotate to drive the clamped object to be close to the outer circumferential surface of the puncture sleeve 402.

[0062] As Figures 2-3As shown, the disassembly component 1 includes a docking portion 102 and a docking portion 202. The docking portion 102 is located on the needle cover 101, and the docking portion 202 is located on the connecting sleeve 2. The docking portion 102 and the docking portion 202 are threadedly matched.

[0063] like Figure 4 As shown, the disassembly component 2 includes a connecting portion 1 203 and a connecting portion 2. The connecting portion 1 203 is located on the connecting sleeve 2, and the connecting portion 2 is located on the cleaning ring 3. The connecting portion 1 203 and the connecting portion 2 are threadedly matched.

[0064] like Figure 1 As shown, the inflation sleeve 4 further includes an inflation port 401 , and an inflation gap communicating with the inflation port 401 is provided between the outer circumferential surface of the needle body 103 and the inner wall of the puncture sleeve 402 .

[0065] like Figure 3 、 Figure 7 As shown, a silicone ring 201 is provided in the connecting sleeve 2, the silicone ring 201 has a central opening, and the needle body 103 passes through the central hole on the silicone ring 201;

[0066] The portion of the silicone ring 201 that contacts the needle body 103 is provided with a lubricating portion 204 .

[0067] like Figures 4-5 As shown, the adjustment assembly 6 includes a sliding sleeve 601 and a fixing bolt 602. The sliding sleeve 601 is movably mounted on the outside of the puncture sleeve 402.

[0068] The fixing bolt 602 is threadedly connected to the sliding sleeve 601 , and the fixing bolt 602 is adapted to be rotated to fix the sliding sleeve 601 and the puncture sleeve 402 .

[0069] like Figure 6 As shown, the traction assembly 7 further includes a rotating shaft 701, which is rotatably mounted inside the traction assembly 7;

[0070] The clamping component includes a transmission sleeve 702 and a clamping claw 703. The transmission sleeve 702 is fixedly mounted on the outer peripheral surface of the rotating shaft 701, and the clamping claw 703 is fixedly connected to the bottom of the transmission sleeve 702.

[0071] The clamping jaw 703 is made of elastic material, and a rubber pad 704 is provided on the clamping portion of the clamping jaw 703;

[0072] The rubber pad 704 is set at the part where the clamping jaw 703 mainly contacts the skin. The rubber increases the friction between the clamping jaw 703 and the skin, further improving the clamping force and preventing the skin from falling off during operation.

[0073] like Figure 6As shown, the traction assembly 7 further comprises a limiting component 8, which comprises a limiting rod 801 and a limiting sleeve 802, the limiting rod 801 is fixedly connected to the outer circumferential surface of the rotating shaft 701, and the limiting sleeve 802 is connected to the outer surface of the traction assembly 7.

[0074] The limiting sleeve 802 is made of elastic material, and the limiting rod 801 is adapted to be clamped into the inside of the limiting sleeve 802 after being rotated by the rotating shaft 701.

[0075] The working principle of the embodiment is as follows:

[0076] Firstly, the abdominal puncture device needs to clamp the skin by two skin-pulling devices when in use, and then pull the skin upwards, so that the skin at both ends forms a straight line, and the skin at the center of the straight line is cut, and then the puncture device is inserted into the incision, and after the puncture device is inserted, the special gas is blown into the operation site through the inflation port 401 and the puncture sleeve 402, so that the skin of the operation site is separated from the internal organs, and a switch valve is arranged in the inflation port 401 to avoid gas leakage. This part is prior art and will not be described in detail here.

[0077] After inflation, the devices for pulling the skin on both sides are not removed, and the part of the skin around the puncture sleeve 402 is pulled into the inside of the clamping jaw 703. The devices for pulling the skin on both sides are not removed in order to more conveniently pull the part of the skin in contact with the puncture sleeve 402 into the inside of the clamping jaw 703. After clamping, the skin clamped by the clamping jaw 703 is pulled to the puncture sleeve 402 by rotating the clamping jaw 703, so as to improve the sealing property between the puncture sleeve 402 and the skin at the incision. At this time, the devices for pulling the skin can be removed.

[0078] The clamping jaw 703 is made of elastic material and has a certain shrinkability. After the skin is pulled into the clamping jaw 703 by human force, the clamping jaw 703 is automatically rebounded under extrusion, and the force generated during rebounding clamps the passing skin.

[0079] After the skin is clamped by the clamping jaw 703, the rotating shaft 701 can be rotated to rotate the head of the clamping jaw 703 to the outer circumferential surface direction of the puncture sleeve 402, so as to pull the skin and make the skin contact the puncture sleeve 402 more closely, thereby improving the sealing property.

[0080] In order to avoid loosening of the clamping jaw 703 after rotation due to the action of the operator, the limiting rod 801 on the rotating shaft 701 can be clamped into the inside of the limiting sleeve 802 when the rotating shaft 701 is rotated to the position. The limiting sleeve 802 is also made of elastic material and has shrinkability, so that the limiting rod 801 can be easily clamped into the inside of the limiting sleeve 802 by human force. After rebounding of the limiting sleeve 802, the limiting rod 801 is clamped.

[0081] When the emergency occurs, the limiting rod 801 is only needed to be pulled upward to make the limiting rod 801 leave the inside of the limiting sleeve 802, so that the limiting is released, and the puncture sleeve 402 can be taken out, so as to ensure that the operation can be quickly stopped and the safety of the patient can be protected in the emergency;

[0082] After the above work is completed, the puncture needle 1 is extracted, and when the puncture needle 1 is extracted, the connection between the needle cover 101 and the connecting sleeve 2 is first disconnected through the threaded connection between the first docking part 102 and the second docking part 202;

[0083] After the puncture needle 1 is extracted, the puncture sleeve 402 remains in place, and various medical instruments required to be used can be directly used through the puncture sleeve 402 subsequently;

[0084] In the entire operation process, various medical instruments need to be replaced and used through the inside of the puncture sleeve 402, but the specifications of different instruments are different, in order to ensure that the instruments are more stable in use, the silica gel ring 201 is arranged, and after the instruments pass through the silica gel ring 201, the self-adapting adjusting effect can be achieved through the contraction ability of the silica gel ring 201 itself, but the friction between the silica gel and the instruments is large, in order to ensure the smoothness and flexibility in the operation process, the lubricating sleeve is arranged on the silica gel ring 201 to reduce the friction between the silica gel ring 201 and the instruments.

[0085] Embodiment two

[0086] As shown in Figures 7-8 , the embodiment further includes the following structure on the basis of the embodiment one: the cleaning ring 3 is internally provided with a cleaning assembly, and the cleaning assembly includes two cleaning rollers 301, and the two cleaning rollers 301 are both rotationally installed in the inside of the cleaning ring 3.

[0087] The two cleaning rollers 301 are both adhered with annular sponges, the outer circumferential surfaces of the two annular sponges abut against each other, and the needle body 103 passes through the two annular sponges.

[0088] As shown in Figures 7-8 , the cleaning assembly further includes two extrusion plates 302, and the two extrusion plates 302 correspond to the two cleaning rollers 301 one by one.

[0089] The part of the extrusion plate 302 in contact with the annular sponge on the cleaning roller 301 is provided with a cleaning round head 303;

[0090] The extrusion plate 302 is internally provided with a receiving groove 304, and the inside of the receiving groove 304 is provided with a water-absorbing sponge;

[0091] The cleaning round head 303 is suitable for extruding the annular sponge on the cleaning roller 301 and guiding the liquid in the annular sponge into the receiving groove 304.

[0092] The working principle of the embodiment is as follows:

[0093] After different instruments pass through the puncture sleeve 402 to enter the operation area, impurities will be attached to the surface of the instrument, and after each use, the operator needs to manually wipe the instrument when taking it out of the puncture sleeve 402, which is extremely troublesome;

[0094] Therefore, the cleaning assembly is arranged in the inside of the cleaning ring 3, and the annular sponge is adhered to the cleaning roller 301 in the cleaning assembly. The annular sponge between the two cleaning rollers 301 rubs against each other. Whether the instrument enters or is taken out, the annular sponge can rub and press the impurities on the surface of the instrument, so that the annular sponge can wipe the impurities on the surface of the instrument when the instrument is taken out, and the self-cleaning effect makes the use more convenient.

[0095] At the same time, when various instruments press the annular sponge, the annular sponge can also provide a certain supporting force to the instruments, so that the instruments are more stable during use.

[0096] After a long time of use, the continuous replacement of various instruments can also cause the annular sponge to be filled with impurities inside, reducing the cleaning effect. Therefore, the extrusion plate 302 is further arranged in the inside of the cleaning ring 3. Each time the instrument is taken out, the annular sponge is pressed and rubbed, and at the same time, the cleaning roller 301 is driven to rotate. When the cleaning roller 301 rotates, it is pressed by the cleaning round head 303 on the extrusion plate 302. After the cleaning round head 303 is pressed, the impurities in the annular sponge are extruded. The extruded impurities flow into the inside of the storage groove 304 along the cleaning direction of the extrusion plate 302. The water-absorbing sponge is arranged in the inside of the storage groove 304, so as to realize the transfer of the impurities from the annular sponge to the water-absorbing sponge. After the impurities are transferred, the service life of the annular sponge is improved, and the annular sponge does not need to be replaced constantly, further improving the convenience of use.

[0097] It should be noted that the connecting sleeve 2 and the cleaning ring 3 are connected through the connecting part one 203 and the connecting part two, and therefore, the disassembly is extremely convenient. After the cleaning ring 3 and the connecting sleeve 2 are disassembled, the water-absorbing sponge and the annular sponge can be replaced or cleaned. The water-absorbing sponge and the annular sponge can be used multiple times after sterile treatment, saving costs.

[0098] The above-described specific embodiments further illustrate the technical problems solved by the utility model, technical solutions and beneficial effects. It should be understood that the above-described specific embodiments are only specific embodiments of the utility model and are not used to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A medical puncture device, characterized in that: include: A connecting sleeve (2), a cleaning ring (3), an inflation sleeve (4) and a puncture needle (1); The puncture needle (1) comprises a needle cover (101) and a needle body (103); The needle cover (101) is connected to the connecting sleeve (2) via a disassembly component 1, the cleaning ring (3) is connected to the connecting sleeve (2) via a disassembly component 2, the inflation sleeve (4) is fixedly connected to the bottom of the cleaning ring (3), and the needle body (103) passes through the connecting sleeve (2), the cleaning ring (3) and the inflation sleeve (4); The inflatable sleeve (4) comprises a puncture sleeve (402), the puncture sleeve (402) is located at the bottom of the inflatable sleeve (4), and a sealing component (5) is provided on the outside of the puncture sleeve (402); The sealing assembly (5) includes an adjusting assembly (6) and a pulling assembly (7), wherein the adjusting assembly (6) is adapted to be actuated to drive the pulling assembly (7) to move longitudinally outside the puncture sleeve (402); The traction assembly (7) comprises a rotatable clamping component, which is adapted to clamp an object and then be driven to rotate so as to drive the clamped object to approach the outer peripheral surface of the puncture sleeve (402).

2. The medical puncture device according to claim 1, characterized in that: The disassembly component 1 includes a docking portion 1 (102) and a docking portion 2 (202), wherein the docking portion 1 (102) is located on the needle cover (101), and the docking portion 2 (202) is located on the connecting sleeve (2), and the docking portion 1 (102) and the docking portion 2 (202) are threadedly matched.

3. The medical puncture device according to claim 1, characterized in that: The second disassembly component comprises a first connection part (203) and a second connection part, wherein the first connection part (203) is located on the connecting sleeve (2), and the second connection part is located on the cleaning ring (3), and the first connection part (203) and the second connection part are threadedly matched.

4. The medical puncture device according to claim 1, characterized in that: The inflation sleeve (4) further comprises an inflation port (401), and an inflation gap communicating with the inflation port (401) is provided between the outer peripheral surface of the needle body (103) and the inner wall of the puncture sleeve (402).

5. The medical puncture device according to claim 1, characterized in that: A silicone ring (201) is provided in the connecting sleeve (2), the silicone ring (201) has a central opening, and the needle body (103) passes through the central hole on the silicone ring (201); The portion of the silicone ring (201) that contacts the needle body (103) is provided with a lubricating portion (204).

6. The medical puncture device according to claim 1, characterized in that: The adjustment assembly (6) comprises a sliding sleeve (601) and a fixing bolt (602), wherein the sliding sleeve (601) is movably sleeved on the outside of the puncture sleeve (402); The fixing bolt (602) is threadedly connected to the sliding sleeve (601), and the fixing bolt (602) is suitable for being rotated to fix the sliding sleeve (601) and the puncture sleeve (402).

7. The medical puncture device according to claim 1, characterized in that: The traction assembly (7) further comprises a rotating shaft (701), and the rotating shaft (701) is rotatably mounted inside the traction assembly (7); The clamping component comprises a transmission sleeve (702) and a clamping claw (703), wherein the transmission sleeve (702) is fixedly sleeved on the outer peripheral surface of the rotating shaft (701), and the clamping claw (703) is fixedly connected to the bottom of the transmission sleeve (702); The clamping jaw (703) is made of elastic material, and a rubber pad (704) is provided on the clamping portion of the clamping jaw (703).

8. The medical puncture device according to claim 7, characterized in that: The traction assembly (7) further comprises a limiting component (8), the limiting component (8) comprising a limiting rod (801) and a limiting sleeve (802), the limiting rod (801) being fixedly connected to the outer peripheral surface of the rotating shaft (701), and the limiting sleeve (802) being connected to the outer surface of the traction assembly (7); The limiting sleeve (802) is made of elastic material, and the limiting rod (801) is adapted to be driven by the rotating shaft (701) to rotate and then be inserted into the interior of the limiting sleeve (802).

9. The medical puncture device according to claim 1, characterized in that: A cleaning assembly is provided in the cleaning ring (3), and the cleaning assembly comprises two cleaning rollers (301), and the two cleaning rollers (301) are both rotatably mounted inside the cleaning ring (3); Annular sponges are adhered to the two cleaning rollers (301), the outer circumferences of the two annular sponges are against each other, and the needle body (103) passes through between the two annular sponges.

10. The medical puncture device according to claim 9, characterized in that: The cleaning assembly further comprises two extrusion plates (302), and the two extrusion plates (302) correspond one to one to the two cleaning rollers (301); The portion of the squeezing plate (302) that contacts the annular sponge on the cleaning roller (301) is provided with a cleaning round head (303); A receiving groove (304) is provided in the extrusion plate (302), and a water-absorbing sponge is provided inside the receiving groove (304); The cleaning round head (303) is suitable for squeezing the annular sponge on the cleaning roller (301) and guiding the liquid in the annular sponge into the receiving groove (304).

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