TW200522912A - Safety trocar device - Google Patents

Abstract

This invention is to provide a safety trocar device, comprising a trocar assembly and a support which is an endoscope surgical apparatus designed to safely enter the abdominal cavity. The trocar assembly is a structure formed with the combination of a sleeve, a trocar and an insufflation needle, wherein its bottom end has a puncture part. When using, install such assembly on the suspension arm of the support wherein the support is fixed on an operating table and an elevation arm is additionally installed under the suspension arm of the support which hooks the abdominal wall of the people receiving operation by the elevation arm. When operating, twist the trocar assembly with a hand continuously and elevate the abdominal wall with the elevation arm gradually, which makes the abdominal wall be punctured by the puncture part of the assembly. Accordingly, the assembly will merely drill through the elevated abdominal wall without touching organs inside the abdominal cavity. The assembly can be provided with puncture marks to judge whether the device punctures the abdominal wall or not.

Description

200522912 V. Description of the invention (l)-[Technical field to which the invention belongs] The present invention relates to a device for endoscopic surgery to enter the abdominal cavity. In particular, it refers to a safety catheter device, including a catheter needle assembly and A stent, whose function is to make the puncture of the abdominal wall highly safe, and will not hurt the organs and large blood vessels in the abdominal cavity of the subject. [Previous technique] Laparoscopic surgery is less damaging to the human body and recovers quickly after surgery. Therefore, it is the mainstream of future surgery. However, the first step of surgery is to enter the abdominal cavity with a sharp instrument. The insertion of an insuffiatioll needle or a trocar is the most dangerous part of surgery, because most large blood vessels or internal organ injuries occur at this time. At present, although there are many new inventions or improved products, none of them is absolutely safe. The reason is that all the methods currently used to enter the abdominal cavity are to pull the abdominal wall by hand, and then use the hand to guide the air needle (12) or catheter. The needle (14) penetrates the lifted abdominal wall to enter the abdominal cavity, as shown in the first picture, but the degree of hand exertion, penetration depth, and the feeling of penetrating the abdominal wall are difficult to accurately control. "And" experience accumulation. " In addition, the failure of the device's safety protection design function or the "tenting" of the peritoneal tent that cannot be completely avoided are the causes of danger when entering the abdominal cavity. [Summary of the Invention] The main purpose of the present invention is to provide a catheter needle assembly, which is designed to avoid the danger of trauma to the abdominal aorta or organs during puncture of the abdominal wall. Another object of the present invention is to provide a catheter needle combination with a penetration index.

200522912 V. Description of the invention (2) Whether the penetrating indicator end has entered the present invention really enters the abdomen of the present invention The above-mentioned catheter stent will implement the patient's implementation [in order to achieve and achieve the detailed drawings. The abdominal wall method of each needle combination that does not fit into the cavity provided by the abdominal cavity] The effectiveness of your review is shown in the display, which can accurately tell the operator the tip of the catheter needle combination. It can be used to test whether it is a test. The purpose is to provide a stent for surgery, which is used in conjunction with it to form a catheter needle device, and the step-up is used to puncture the catheter needle combination. The members can further understand the purpose and characteristics of the present invention. ′ Here is a preferred embodiment of the present invention, and after matching, the arrangement of the diagram is as follows: the conventional operation mode of puncturing the abdominal wall. Three-dimensional view of the catheter needle combination of a preferred embodiment of the second figure is an exploded perspective view of the second figure. The fourth figure is a perspective sectional view of the outer sleeve of the second figure. The fifth figure is a longitudinal sectional view of the second figure. Figure 6 is a perspective view of a bracket according to a preferred embodiment of the present invention. The seventh picture shows the pre-operative state of the subject. The eighth figure shows a state where the present invention is installed on an operating table. The ninth figure shows a state in which the operator operates the present invention. = Ten to fifteen pictures are the process of puncturing the abdominal wall according to the present invention. The sixteenth figure shows the completion of the puncture operation. The catheter device provided by the present invention includes a catheter assembly

200522912

And a stent, the catheter needle assembly is mounted on a stent, the tip of the catheter needle is fixed at a safe fixed point, and the abdominal wall gradually lifts the needle through the abdominal wall through the stent and gradually expands the wound, and then the stent is removed and Inflate the abdominal cavity for laparoscopic surgery. First, please refer to the second to fifth figures. The tr0car assembly (20) includes: a sleeve, a trocar, and an insufflation needle. Part combination design, each part can be quickly combined and decomposed. The jacket (30), as shown in the third and fourth figures, may be made of plastic or metal, and has an upper section (31) and a relatively elongated and tubular lower section (32). A ring-shaped recessed receiving part (34) for fixing by the aforementioned bracket. The upper section (31) is provided with two buckle grooves (36) at appropriate intervals at the opening, and a plurality of air-tight members are arranged below the buckle groove. The air-tight members include a diaphragm ring (37) and a The lower flap valve (38) with the function of exhausting (closing) air, the flap valve (38) is pivoted in the outer casing (30) and can be rotated; its pivot joint is connected with a bolt button (35), the The bolt (35) f is pivotally connected to the outer peripheral surface of the outer casing, so that the operator can be controlled externally. In addition, an elastic element (3 11) is an l-shaped steel wire connected between the bottom surface of the flap valve and the inner peripheral surface of the upper section (31), and its elastic energy causes the flap valve (38) to go upward in the normal state. It is angularly displaced and closed on an annulus (312) provided on the inner peripheral surface of the upper section (31) to form an airtight effect. In addition, a peripheral port (39) is provided on the outer surface of the outer casing (30), and is connected to the inside of the outer casing. The port (39) is used to connect a fluid switch to control whether the fluid flows into the outer casing. The catheter needle (40) is made of metal and has a round rod-shaped body (4 2).

Page 6 200522912 V. Description of the invention (4) A plate part (4 3) is set at the top of the body; one end is for manual rotation, and each spin (t button (44) is set on the top surface of the body item) The space has a gap (44n (44) on the inner bottom edge and the disc portion (43) provided on the body portion (42) peripheral surface: the body portion) at the bottom end of the body // body (45) to properly puncture the puncture The peripheral surface of the body is made into thick snails. It is a round, piercing part (⑻, a central hollow with a thin tube). In addition, the axial cavity in the body runs through the top of the body (42) ^ And the cavity (48) on one side, the center of the two needles, so its bottom end just penetrates the Xi cavity (47) is located in the catheter cavity (48) is adjacent to the catheter needle: ^ 牙 f 部 （ (M) the tip, and the side peripheral surface penetrates. The side is such that the bottom end of the air guide needle (50) from the puncture portion is an elongated (52) and two are located at the top of the injection port-an injection port. The air guide needle is inserted into the central hollow sheet part (54), and the two positioning parts (54) are embedded in the catheter obliquely) as shown in the fifth figure, and positioned by ⑽). The air-guiding needle (50) body: 之) The slotted part on the top surface is exposed just after the catheter needle (4 ()), and the oblique ⑷ at the bottom of the needle tip is-sheet body; set two); !! The tip of the spine is cricket. Displacement between the cool position and the release position, the top of the needle (4〇) can be inserted into the catheter needle when the clip is snapped. ^ The fastener (49) is shifted by 1 from the position of the air guide needle. The positioning part (54), = = = gap (441), and pressed. When the clip (49) is moved away from the central cavity and is no longer compressed, and can be removed by the user ^, the air guide needle (50) is a first indicating object and is tied to the top Let-indicate the unit Ϊ, ... Ϊ =:; (= probe: 200522912 V. Description of the invention (5) is inserted into the side cavity ⑷) ", so the probe (64) is extended through the catheter needle ⑷), The second part of the protrusion: the periphery of the part (46). When the probe is not touched by an external force, it is tied: the indicator part (f) touches the top of the body part (42) of the probe needle. Is _ 0.5M longer than the air guide needle (5〇) 0.5M ^ TS \ mt indicator needle (70) 'The bottom of the length is round and pure. The indicator needle (7; top / also § another indicator section (72) 'When it is touched by an external force, it is gravity;: (ί is placed in the air guide needle (50), Weibu (, the indicator part is landed on the air guide needle (5〇 =: needle thorn (4.) The two guide pins (60) and the indicator needle (70) are both inserted into the catheter needle button ηΛ2 outer casing (30) 'when installed, pull the plug', so that the diaphragm valve (38 ) Down to leave the annulus (312) for the catheter

= After the catheter needle is installed, the disc portion (43) is abutted against the one latch body (45) of the second A ^ Β of the outer sleeve and locked to the buckle groove (36) of the outer jacket. In the lower section (32) of the π sleeve, the puncture part (46) is just exposed outside. At the same time, the pointer (70) of the probe (60) is also exposed. In this way, the combination of the catheter needle of the invention (20). When laparoscopic surgery is to be performed, the catheter needle assembly is mounted on the aforementioned bracket. Referring to the figure, the bracket (80) includes: a frame body (82), a mounting portion (83) is set at the bottom end as a sleeve, and the sleeve (8 3) has screws on its peripheral surface. Set a bolt (8 4). Cantilever (85) (suspension arm), which is outward from the frame (82) = ^ is suspended, the cantilever (85)-set at the end of a C-shaped sleeve (86),-pick (87) ' The two lugs (851) provided on the cantilever (85),

200522912

V. Description of the invention (6) ==; (8; 6) The openings are located on the same side; -Spring ⑻):: Π Π: Hunting ㈣ moving detection lever ⑻) Move into the sleeve ⑽ to have a pivotal connection A pick point moves the second arm. The lifting arm (90) is formed on the frame body (82), is formed below the cantilever (85), and is pivoted on both sides by the end (the self-lifting part (9 5) of the second arm body), each of the rotating shafts (96) — The end ears (9 8) are respectively fixedly connected, so that the pair of hook ears (9 8) can hold objects.

A lifting arm (90) (elevatiQn hits ... an arm body (92) and a second arm body (93), the pivot (93) of which can be turned horizontally to a frame (the first part of the first arm body (92)) The free end of the arm body is pivotally connected to the lever, which can be displaced up and down. The lifting arm can be adjusted to the distance from the cantilever. The free end of the lifting arm) is provided with a C-shaped lifting part (9 5), The set of two rotating shafts (g 6) which are parallel and maintained at an appropriate interval are fixedly connected to a dial button (97) for rotating the rotating shaft. Two hooks are on the two rotating shafts (96). When the two rotating shafts are rotated, they move downwards to hook objects; or they move up to release the hooks.

In addition, in this embodiment, a positioning member is provided on the lifting arm (90), which is a ratchet plate (100), and the ratchet plate (100) is pivotally connected to the lifting arm and the other end It is penetrated upward into a channel (102) provided on the frame body (82). 'A jumpable ratchet (not shown) is set at the position of the channel to bite on the ratchet of the ratchet. . When the lifting arm (90) gradually rises toward the cantilever (85), the meshing relationship between the 'ratchet piece (1000) and the ratchet teeth can keep the height of the lifting arm fixed and not fall. The meshing structure of the ratchet plate and the ratchet teeth will not be described in detail. The mode of operation of the present invention 'is described below.

Page 9 200522912 V. Description of the invention (7) Or semi-operatively, the patient's navel of the navel is made a transverse or 1 = 1: incision (11 (0 the eighth stent (80) is fixed on the operating table) ⑴5) As shown in the eighth figure, the sleeve (83) is put on one of the operating tables to adjust the bracket to an appropriate height, and then the screw inspection (84) is re-tightened and fixed to the lifting arm ( 9〇) The lifting part (95) at the free end is exactly at the level of the skin of the subumbilical incision (110). After that, the operator rotates the ^ (98) downward to hook it into the incision (11〇) 二Side. ', Move the bolt (87) on the cantilever to open the opening of the sleeve (86). The guide pin combination (20) is inserted into the sleeve (86), and the ether: (") is installed in the sleeve. (86). Remove the lever (87) (the clamping cup is used to close the sleeve (86), and the clamped portion (34) is clamped to complete the operation of the catheter needle assembly, and the catheter needle assembly It must be turned at the mouth of the sleeve. ^ ^ The tip of the lower end of the needle assembly is about 4 cm left from the lifting part (95) of the lifting arm, as shown in the eighth figure. After completing the above operation, the operator will use one hand (such as the left hand) ) Index finger lift arm ( 90) The free end of the hook (99), as shown in the ninth figure, move the lifting ^ ^ 2 towards the cantilever (85) to 'make the puncture part (46) at the bottom of the catheter needle (40) extend ^ pull part (95 ) And enter the incision (11), and then use one hand (such as the right hand) to rotate the knob (44) of the catheter needle in-situ / drill the skin with the puncture position at the bottom of the catheter needle. Use the lifting arm (90) to move The abdominal wall is gradually lifted up and the continuous drilling of the catheter needle can gradually penetrate the abdominal wall. &Amp; When the puncture part (46) at the bottom of the catheter needle (40) contacts the abdominal wall, as shown in the tenth figure, the probe (60) And the indicator needle (70) moves upward due to the bottom end being blocked, at this time, page 10 200522912 V. Description of the invention (8) '-f The catheter needle combination has not penetrated the abdominal wall. Such as the tenth-^ thorn section (46) After the tip penetrates the abdominal wall and enters the abdominal cavity, make; = the bottom of the needle (70) is unblocked and gravity drops. By finger; the needle:; (fall = drop to the top of the catheter needle (50)), as Thirteen pictures of 'month' brother can be used for the operator to read the guide camp 4+ person τδ: the tip of the broken has entered the abdominal cavity. 『Bei guide ㊁ needle combination raised the bottom 提 and accompanied the crying officer in the abdominal cavity 2 = ' Because the abdominal wall is lifted by the arm and the abdominal cavity, it will not damage the organs or aorta. The e-guide needle is installed in the state of entering the $ 12 operation and the test into the abdominal cavity. Use a water injection syringe to insert the ": mouth, 70 :: guide needle (50) to take, or self-guide the gas or substance in the abdominal cavity. The injection of the gas needle into the abdominal cavity is whether the surgery really enters the abdomen, or n, etc. In the few cases, the patient's organs can be used to ensure safety. In very few cases: Lu Ke will stick to the rotten stage and test to see if there is a puncture operation: here-organ, if it is true In this way, you can stop wearing immediately: move to the abdomen wall to prevent the harm from expanding. To prevent hazards or avoid surgery, proceed to puncture the abdominal wall as shown in Figure 12, so that the puncture section (46) = the surgeon can continue the cavity, as shown in Figures 14 and 15, at this time , Probe the second abdominal wall and enter the abdomen without being blocked, so the indicator part (62) at the top end of it = 2 the probe (64) at the bottom end has entered the abdominal cavity. The puncture operation has been completed :, hand ::. 200522912 Separating the tube and needle combination and removing the stent 'Remove the catheter needle (40) containing the air guide needle, probe, and indicator needle from the outer casing (30), inflate the abdominal cavity through the through hole (39), and then use laparoscopy or The surgical instrument is extended into the abdominal cavity through the jacket to perform the operation. The operation method of the catheter needle device provided by the present invention is to discard the traditional way of thrusting a sharp air guide needle or catheter needle into the lifted abdominal wall, but to use the puncture through the abdominal wall. However, the sharpest part of the air guide needle or catheter needle is fixed outside the abdominal wall. It is safe to take the second change to gradually increase the abdominal wall under control, so that the rotating catheter needle combination gradually penetrates. In this way, the abdominal cavity is large. Blood vessels and organs are not likely to be injured because they have not moved. In addition, the air guide needle and the catheter needle have successively penetrated the abdominal wall in a spiral manner and gradually expanded the wound. Therefore, the wall can be effectively prevented from "forward peritoneal wave & canopy phenomenon" and leave the smallest penetrating wound. In addition, the present invention allows the air guide needle, the catheter needle, and the sheath to enter the abdominal cavity at the same time, and the surgical steps become simplified. Two penetration indicators located at the center and edge of the catheter needle can accurately tell the operator that the tip or the entire sheath has entered the abdominal cavity. At the same time, the center air guide needle can also provide a variety of tests to test whether it really enters the abdominal cavity.

200522912 Brief description of the diagram The first diagram shows the conventional operation method of puncturing the abdominal wall. The second figure is a perspective partial cross-sectional view of a catheter needle assembly according to a preferred embodiment of the present invention. The third figure is an exploded perspective view of the second figure. The fourth figure is a perspective sectional view of the outer sleeve of the second figure. The fifth figure is a longitudinal sectional view of the second figure. The sixth figure is a perspective view of a bracket according to a preferred embodiment of the present invention. The seventh picture shows the pre-operative state of the subject. The eighth figure shows a state where the present invention is installed on an operating table. The ninth figure shows a state in which the operator operates the present invention. The tenth to fifteenth drawings are the process of puncturing the abdominal wall according to the present invention. The sixteenth figure shows the completion of the puncture operation.

Page 13 200522912 Type 1 Simple Description Drawing Number Simple Description: Catheter needle combination (20) outer jacket (30) flap ring (3 1 2) lower section (32) button (35) buckle slot (3 6) flap valve (38) Port (39) Body (42) Disk (43) Clearance (441) Clip body (45) Cavity (47) (48) Clamping member (4 9) Injection port (5 2) Positioning part (5 4 ) Probe (60) Pointer (6 2) Pointer (7 0) Pointer (7 2) Frame (82) Mounting section (8 3) Cantilever (85) Sleeve (86) Convex section (8 71 ) Spring (88) Arm body (92) (93) Lifting part (9 5) Dial (9 Ό Jun ear (98) Ratchet (1 0 0)) Channel (102) Surgical port (11 5) Pillar ( 11 6) Upper section (31) Clamping section (34) Diaphragm ring (3 7) Catheter needle (4 0) Knob (4 4) Puncture section (46) Air needle (50) Recessed groove (421) Probe (64 ) Bracket (80) Bolt (84) Bolt (87) Lift arm (90) Rotary shaft (96) Hook (9 9) Cutout (11 0)

Claims (1)

The first spleen in the cavity ... Solid item 3 of the white blood vessel> The ventricular system is located on the body of the catheter needle ... The tip of the puncture part protrudes outward; Part VI. Patent application scope 1 · A catheter needle combination, including : The outer jacket 'has an upper section and another', at least one airtight member, which is provided on the upper section, is a thin two-catheter needle, and has a rod-shaped body part, 'Xi = :: 部; a spiral t 周 is provided on the peripheral surface of the puncture section. It is arranged along the body axis at the body = ice end. The catheter needle is threaded out of the outer end of the outer sleeve of the outer sleeve. The air guide needle is an elongated tube body. The end is located in the puncture part 2. The guide pin y as described in item 1 of the scope of patent application, is a slender rod body with a length z; The indicator pin is inserted through the air guide needle ^ ^ No needle is a natural undershirt when not touched by an external force 7 ^ The top of the air guide needle; the bottom end of the needle is extended d This guide is the same as the guide described in item 2 of the scope of patent application : A second slender g; xi two f; further comprising: a probe, the length of which is placed in the second cavity, and the bottom end can fall by gravity, The top end of the catheter needle is fixed / convex to the bottom end of the catheter needle. The lower end of the tube is the same as that described in item 3 of the scope of patent application, and the bottom end is a conical pattern; And through the body 'the puncture part just penetrates the empty "needle combination of the catheter needle, and also contains the lucky needle that the air guide needle is appropriately long enough to be displaceable within the air guide needle' and that the tip of the pointer is the puncture part The pin combination, where: the cavity also penetrates the body is longer than the second cavity; the cavity is displaced; often at the top of the body; and the pin combination, where:; the bottom end of the pointer The cavity system is located on the side of the body 200522912, the light 44 »rir of which 5 of them are protruding from the periphery of the stab part as the ΪίΙ end is protruding. The top of the catheter needle combination m probe is provided with an indicating unit. 7 'The catheter needle combination described in the first to the scope of the first patent application is combined with the probe bottom: the catheter needle described in the third scope Combined political system fork-blunt probe The body of the catheter needle is also provided with top and bottom ends; ·· The first long cavity of a probe also penetrates the body-"π .- Hugh Town ', its length is placed in the second cavity than that of the second space Di 22-2, and can be along the space Lumen displacement; Yu ^ "The probe is gravity-dropped, and its end is positioned at it; the bottom of the suspension is protruding from the bottom of the needle of the catheter. For a catheter needle assembly, the outer peripheral surface of the outer sleeve is provided with a clamped part, which can be clamped. 9 · The catheter needle assembly according to item 1 of the patent application scope, which :: the top of the needle body part A disk part is provided, and the catheter needle is penetrated. The disk part is abutted against the top end of the jacket when entering the outer sleeve. # 时 = 10 · As described in the patent needle scope item 1, the upper section of the outer sleeve is at The opening is provided with at least one buckle slot 2 /, middle: At the top, at least one card is provided, and the card body can be stuck; the body 11. The catheter needle combination according to item 1 of the scope of patent application, said: —The clip is located on the top of the body, and can be moved between—the card two daggers include the interposition displacement 'the stomach clip is moved to the buckle π and: . Yu Xu 1 2The catheter needle group as described in item 1 of the scope of patent application Page 16 200522912 6. Scope of patent application: The top surface of the needle body of the catheter is provided with at least one slot, and the top of the air needle is provided with at least one positioning portion. When the air needle is inserted into the catheter needle, the positioning The department is engaged in the insert groove. 13. The catheter needle combination according to item 12 of the scope of patent application, further comprising: a clip fastener, which is arranged at the top of the body and can be displaced between a snap position and an unlock position, and the clip displacement When the buckle position is reached, the top of the air needle is fastened. 14. The catheter needle combination according to item 13 of the scope of the patent application, wherein: a gap is set at the top end of the catheter needle; the clip is in the shape of a sheet and is pivotally connected to the top of the catheter needle at one end;玎 Turn; when the clip is moved to the buckle position, it is embedded in the gap. 1 5 · The catheter needle combination according to item 1 of the scope of patent application, wherein: the outer peripheral surface of the outer sleeve is provided with a port to communicate with the inside of the outer sleeve. 16 · The catheter needle combination according to item 1 of the scope of patent application, further comprising: a knob provided at the top of the catheter needle combination. 17. The catheter needle combination according to item 16 of the scope of patent application, wherein the knob is provided on the top of the body of the catheter needle and the outer cover is exposed. 18. · A catheter needle combination, comprising: a jacket having an upper section and a relatively elongated and tubular lower section; at least one airtight member provided in the upper section; a guide needle having a rod-shaped body, The bottom end of the body is provided with a puncture part, and a first elongated cavity is arranged in the body part along the axial direction of the body part, and the penetrator penetrates the top and bottom ends of the body part; the catheter needle is used for penetrating teeth The stabs penetrate just beyond the bottom end of the jacket; 200522912 VI. The scope of patent application: a slender first indicator object with a length longer than that of the cavity. The indicator object is disposed in the cavity and can be displaced in the cavity. Under normal conditions, the indicator object is gravity Dropped, its top end is located at the top of the catheter needle and its bottom end is out of the cavity. 19. The catheter needle combination according to item 18 of the scope of patent application, wherein: the bottom end of the cavity is located exactly in the center of the puncture portion. 20 • The catheter needle combination according to item 18 of the scope of patent application, wherein the bottom end of the cavity is located on the peripheral surface of the puncture portion. 2 1 · According to the catheter needle combination described in item 19 of the scope of the patent application, the body is additionally provided with a bottom end of the first cavity is located in the piece, the length is longer than the first cavity, and can be dropped by the gravity ' It's Bega cavity. An * slender cavity that penetrates the top and bottom ends of the body, and the first perimeter of the puncture part; further includes: a second indicator and a two cavity length, and the second indicator object is provided in the second space Displacement in the cavity; under normal conditions, the end of the second indicating object is located at the top of the catheter needle, and the bottom end of the second indicating object is threaded through 2 2 · If applying for a straight ^,: the two indicating objects dry around the catheter described in item 21 Needle combination, each of which has an indicator on the top of the 1,000. 23. If the application contains: a catheter needle combination as described in item 21 of air-conducting 1 dry encirclement, separately included; the bottom end of the air-conducting needle is f — a thin tube 胄 'is inserted in the first cavity In the air guide needle, it can stand on the stab part, the first indicating object is perforated 24.-A kind of branch moves up and down in the air guide needle. There are: Zhu, which is used in combination with a catheter needle, which includes a mounting body at the bottom end, which can be connected to the operating table; Page 18 200522912 VI. Patent application scope The cantilever is connected to the frame and extends laterally outwards to be released and hollow; a set of mouths are provided at the free end of the cantilever; On the frame, the position can be changed up and down to change the position. The lifting arm is located below the cantilever; a lifting part is provided at the free end of the cantilever and below the sleeve mouth; two hook ears are provided at the The lifting part can be used to hook objects, and the two hook ears are kept at a proper distance. 25. The stent according to item 24 of the scope of patent application, wherein the sleeve of the cantilever is C-shaped; further comprising: a bolt rod that closes the opening of the sleeve in a releasable manner. 26. The bracket according to item 25 of the scope of patent application, wherein the cantilever is provided with two lugs on the same side of the opening of the sleeve mouth, and the bolt is threaded through the one lug and can be installed on the two Sliding between the lugs and closing the opening of the sleeve when sliding toward the sleeve; an elastic element is provided between the bolt and the cantilever, and the bolt is closed by the elastic element under normal conditions. The set of mouth. 27. The bracket according to item 26 of the scope of patent application, wherein the elastic 70 is a spring sleeved on the bolt, one end of which is against a lug, and the other end is against the bolt. 2 8 · The bracket described in item 24 of the scope of the patent application of the 'in which ··· the lifting arm of the lifting arm is provided with two parallel and maintain a proper distance of the turn; the two hook ears are respectively fixed to the Two shafts. Mouth h 2 9 The stent according to item 28 of the scope of patent application, wherein the lifting portion is in a C-shaped configuration; the two rotating shafts are pivotally arranged on two sides of the lifting portion. 30. The bracket ′ as described in item 29 of the scope of the patent application, among which a dial is fixedly connected to each of the rotating shafts for manual operation. _ I pay page 19 200522912 VI. Application scope of patent 31. For the bracket described in the scope of patent application No. 24, among them, one end of the lifting arm is connected to the frame, and the direction of the upper and lower angular displacement is changed. 32. The bracket according to item 31 of the scope of patent application, wherein the lifting arm system includes a first arm body and a second arm body pivotally connected, and the second arm body can be opposite to the first arm body. The lifting arm is pivotally connected to the frame body with the free end of the first arm body; the lifting part is provided at the free end of the second arm body. 33. The stent according to item 24 of the scope of application for a patent, wherein the mounting part is a sleeve; and further comprising: a bolt, which is screwed on the peripheral surface of the sleeve. 34. The bracket according to item 24 of the scope of patent application, further comprising: a positioning member, which is arranged between the lifting arm and the frame body, so that when the lifting arm is displaced upward, the height can be fixed. 35. The bracket according to item 34 of the scope of patent application, wherein: the frame is provided with another channel 'and at least one ratchet tooth is provided at the position of the channel; the positioning member is a ratchet plate, and one end is Connected to the lifting arm, the ratchet plate is threaded into the channel and is engaged with the ratchet. 36 · —A safety catheter needle device, including: a catheter needle assembly and a stent; wherein: the catheter needle assembly includes: a jacket; a guide needle 'has a rod-shaped body, and the bottom end of the body is connected with a It has a conical piece of standing teeth, a first elongated cavity, and is arranged on the body along the axial direction of the body. In the middle and through the top and bottom of the body; the catheter needle is put through the outside Page 20 200522912 In the sleeve, the puncture part just penetrates beyond the bottom end of the jacket. An elongated object is attached to the first place. The bracket includes: & a middle body with an installation part, which can be connected to surgery. △. -Cantilever, which is connected to the frame and extends outwards: county mouth, set at the free end of the cantilever; heart-shaped 'one-to-one lifting arm, pivoted to the frame with one end, can be changed on Height; the lifting arm is located below the cantilever; a lifting part stands :: At the free end of the cantilever and below the sleeve mouth, the lifting part can be used to hook objects; 'The catheter needle assembly is detachably installed in the sleeve mouth of the bracket and can be placed in the sleeve mouth Rotate by hand. 37. The safety catheter device according to item 36 of the scope of patent application, wherein: the elongated object is an indicator object having a length longer than the cavity; the indicator object is penetrated in the cavity, and can be Displacement in the cavity, under normal conditions, the object is gravity-dropped, its top end is located at the top of the catheter needle, and its bottom end is out of the cavity. 38. The safety catheter needle device according to item 36 of the scope of patent application, wherein the elongated object is a tubular air needle. 39. The safety catheter device according to item 38 of the scope of the patent application, further comprising: an elongated first indicating object, which is longer than the air guide needle, and the indicating object is passed through the air guide. It can be moved up and down in the needle. Normally, 'the indicating object is gravity-dropped, its top end falls on the top of the catheter needle assembly', and its bottom end penetrates the cavity. Page 21, 200522912 VI. Patent application scope 40. The safety catheter device described in item 39 of the patent application scope, t. The body of the catheter needle is additionally provided with a second elongated cavity, It also runs through the top and bottom ends of the body; it also includes: a second indicating object, which is longer than the second cavity, the second indicating object is penetrated in the second cavity and can be moved up and down, normal Next, the indicating object is gravity-dropped, its top end is located at the top end of the catheter needle, and its bottom end is penetrated through the second cavity. 4 1 · The safety catheter device according to item 40 of the scope of patent application, wherein the bottom end of the first indicating object is protruding from the tip of the puncture part, and the bottom end of the second indicating object is Projecting from the peripheral surface of the puncture portion. 42. The safety catheter device according to item 40 of the scope of application for a patent, wherein: an indicating part is provided on each of the top ends of the indicating objects. 43. The safety catheter according to item 36 of the scope of the application for patent, 'Middle' The top of the catheter needle combination is provided with a knob. 44. The safety catheter needle according to item 36 of the scope of the patent application, wherein the lifting part is provided with two hooks' ears at appropriate intervals to hook the object. The bucket uses the two hooks 45. The safety described in item 36 of the scope of patent application additionally includes: a positioning member attached to the lifting e-device, so that the lifting arm can maintain a high height when moving upward toward the cantilever ^ ^ Between the bodies