diff --git a/src/api/his.ts b/src/api/his.ts
index d664df6..5c54e71 100644
--- a/src/api/his.ts
+++ b/src/api/his.ts
@@ -18,6 +18,8 @@ import type {
   TongyishuGetResponse,
   InputTongyishuSignSubmit,
   TongyishuSignSubmitResponse,
+  InputDaojiandanSignSubmit,
+  DaojiandanSignSubmitResponse,
   InputCustomerDetailEdit,
   CustomerDetailEditResponse,
   InputPhysicalExamAddItem,
@@ -184,3 +186,23 @@ export const searchPhysicalExamAddItem = (
   ).then(res => res.data);
 };
 
+/**
+ * 提交体检签名生成导检单PDF
+ */
+export const submitDaojiandanSign = (
+  data: InputDaojiandanSignSubmit
+): Promise<DaojiandanSignSubmitResponse> => {
+  const formData = new FormData();
+  formData.append('sign_file', data.sign_file);
+  
+  return request.post<DaojiandanSignSubmitResponse>(
+    `${MEDICAL_EXAM_BASE_PATH}/daojiandan-sign-submit?exam_id=${data.exam_id}`,
+    formData,
+    {
+      headers: {
+        'Content-Type': 'multipart/form-data',
+      },
+    }
+  ).then(res => res.data);
+};
+
diff --git a/src/api/types.ts b/src/api/types.ts
index 998df03..945b7b6 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -336,6 +336,33 @@ export interface OutputTongyishuSignInfo {
  */
 export type TongyishuSignSubmitResponse = CommonActionResult<OutputTongyishuSignInfo>;
 
+/**
+ * 提交体检签名生成导检单PDF入参
+ */
+export interface InputDaojiandanSignSubmit {
+  /** 体检ID */
+  exam_id: number;
+  /** 签名图片文件 */
+  sign_file: File | Blob;
+}
+
+/**
+ * 提交体检签名生成导检单PDF出参
+ */
+export interface OutputDaojiandanSignInfo {
+  /** 导检单文件名称 */
+  pdf_name?: string | null;
+  /** PDF文件地址 */
+  pdf_url?: string | null;
+  /** 消息内容 */
+  message?: string | null;
+}
+
+/**
+ * 提交体检签名生成导检单PDF响应
+ */
+export type DaojiandanSignSubmitResponse = CommonActionResult<OutputDaojiandanSignInfo>;
+
 /**
  * 客户信息编辑入参
  */